{"id":115,"date":"2025-09-07T16:26:29","date_gmt":"2025-09-07T08:26:29","guid":{"rendered":"http:\/\/www.dioit.com\/?p=115"},"modified":"2025-09-07T16:32:26","modified_gmt":"2025-09-07T08:32:26","slug":"javascript%e5%ad%a6%e4%b9%a0","status":"publish","type":"post","link":"http:\/\/www.dioit.com\/index.php\/2025\/09\/07\/javascript%e5%ad%a6%e4%b9%a0\/","title":{"rendered":"JavaScript\u5b66\u4e60"},"content":{"rendered":"

Web-JavaScript-Study<\/span><\/h1>\n
\n
\n<\/div>\n

<u><\/span> \u4f5c\u8005\uff1ajason-wrj <\/span><\/u><\/span><\/p>\n

<u><\/span> \u5206\u7c7b\uff1a\u670d\u52a1\u5668\/\u7f51\u7edc\u670d\u52a1\u5668\/JavaScript <\/span><\/u><\/span><\/p>\n

<u><\/span> \u6807\u7b7e\uff1aServer, Web Server, JavaScript <\/span><\/u><\/span><\/p>\n

<u><\/span> \u66f4\u591a\uff1a<\/span>www.dioit.com\u2014\u2014\u8fea\u6b27IT\u2014\u2014dio\u667a\u80fd\u79d1\u6280<\/span><\/a><\/span> <\/u><\/span><\/p>\n

<u><\/span> \u66f4\u591a\uff1a<\/span>www.dioit.com\u2014\u2014dioIT\u2014\u2014\u5d4c\u5165\u5f0f\u7535\u5b50\u667a\u80fd\u6280\u672f<\/span><\/a><\/span> <\/u><\/span><\/p>\n

\n
\n<\/div>\n

1 JavaScript \u6982\u8ff0<\/span><\/h2>\n

1.1 JavaScript \u7b80\u4ecb<\/span><\/h3>\n

JavaScript \uff08\u7b80\u79f0 JS\uff09\uff0c\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u3001<\/span>\u89e3\u91ca\u578b<\/span><\/strong><\/span>\uff08\u6216\u5373\u65f6\u7f16\u8bd1\u578b\uff09\u7684\u5f31\u7c7b\u578b<\/span>\u52a8\u6001<\/span><\/strong><\/span>\u7f16\u7a0b\u8bed\u8a00\uff0c\u662f\u57fa\u4e8e\u539f\u578b\u3001\u51fd\u6570\u4f18\u5148\u3001\u652f\u6301<\/span>\u591a\u8303\u5f0f<\/span><\/strong><\/span>\uff08\u5982<\/span>\u9762\u5411\u5bf9\u8c61<\/span><\/strong><\/span>\u3001<\/span>\u51fd\u6570\u5f0f\u7f16\u7a0b<\/span><\/strong><\/span>\uff09\u7684\u811a\u672c\u8bed\u8a00\u3002<\/span><\/p>\n

\u5b83\u6700\u521d\u7531 Brendan Eich \u5728 1995 \u5e74\u4e3a Netscape Navigator \u6d4f\u89c8\u5668\u8bbe\u8ba1\uff0c\u539f\u540d LiveScript\uff0c\u540e\u4e0e Sun \u516c\u53f8\u5408\u4f5c\u66f4\u6539\u540d\u4e3a JavaScript\uff08\u8425\u9500\u7b56\u7565\uff0c\u4e3a\u8e6d Java \u70ed\u5ea6\uff09\uff0c\u4e0e Java \u6ca1\u6709\u76f4\u63a5\u5173\u7cfb\uff0c\u4f46\u8fd9\u4e2a\u540d\u5b57\u53cd\u6620\u4e86\u5f53\u65f6 Java \u7684\u6d41\u884c\u3002<\/span><\/p>\n

JavaScript \u4e3b\u8981\u7528\u4e8e\u589e\u5f3a\u7f51\u9875\u7684\u52a8\u6001\u4ea4\u4e92\u6027\uff0c\u73b0\u5df2\u6210\u4e3a Web \u5f00\u53d1\u7684\u6838\u5fc3\u6280\u672f\u4e4b\u4e00\uff0c\u662f\u5168\u6808\u5f00\u53d1\u7684\u6838\u5fc3\u6280\u672f\u3002<\/span><\/p>\n

1.2 JavaScript \u89c4\u8303<\/span><\/h3>\n

\u8bed\u8a00\u89c4\u8303\u7531 <\/span>ECMAScript<\/span><\/strong><\/span>\uff08ES\uff09\u5b9a\u4e49<\/span>\u6807\u51c6\u5316<\/span><\/strong><\/span>\uff0cES6\uff082015\uff09\u65b0\u589e\u6a21\u5757\u5316\u3001\u7bad\u5934\u51fd\u6570\u7b49\u9769\u547d\u6027\u7279\u6027\uff0c\u6700\u65b0\u7248\u672c\u4e3aES2023\u3002<\/span><\/p>\n

1.3 JavaScript \u4f18\u52bf<\/span><\/h3>\n
    \n
  1. \n

    \u751f\u6001\u4e30\u5bcc\u6027<\/span><\/p>\n

      \n
    • \n

      \u8de8\u5e73\u53f0<\/span><\/strong><\/span>\uff1a\u4ece\u6d4f\u89c8\u5668\u5230\u670d\u52a1\u5668\u5747\u53ef\u8fd0\u884c\u3002<\/span><\/p>\n<\/li>\n

    • \n

      \u524d\u7aef\u6846\u67b6\uff1aReact\u3001Vue\u3001Angular \u7b80\u5316\u590d\u6742\u5e94\u7528\u5f00\u53d1\u3002<\/span><\/p>\n<\/li>\n

    • \n

      \u540e\u7aef\u5de5\u5177\uff1aExpress\u3001Koa \u6784\u5efa Web \u670d\u52a1\uff0cNestJS \u652f\u6301\u4f01\u4e1a\u7ea7\u67b6\u6784\u3002<\/span><\/p>\n<\/li>\n

    • \n

      \u5305\u7ba1\u7406\uff1anpm \u4ed3\u5e93\u62e5\u6709\u8d85 300 \u4e07\u5f00\u6e90\u5305\uff0c\u8986\u76d6\u4ece\u5de5\u5177\u94fe\uff08Webpack\uff09\u5230\u6570\u636e\u5e93\uff08MongoDB \u9a71\u52a8\uff09\u7684\u5168\u94fe\u8def\u9700\u6c42\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

    • \n

      \u5f00\u53d1\u6548\u7387<\/span><\/p>\n

        \n
      • \n

        \u5b9e\u65f6\u8c03\u8bd5\uff1a\u6d4f\u89c8\u5668\u5f00\u53d1\u8005\u5de5\u5177\u652f\u6301\u4ee3\u7801\u4fee\u6539\u540e\u5373\u65f6\u751f\u6548\u3002<\/span><\/p>\n<\/li>\n

      • \n

        \u6a21\u5757\u5316\uff1aES6 \u5f15\u5165 <\/span>import\/export<\/code><\/span>\uff0c\u7ed3\u5408 Webpack \u5b9e\u73b0\u4ee3\u7801\u5206\u5272\u4e0e\u61d2\u52a0\u8f7d\u3002<\/span><\/p>\n<\/li>\n

      • \n

        \u5feb\u901f\u8fed\u4ee3<\/span><\/strong><\/span>\uff1aECMAScript \u6bcf\u5e74\u66f4\u65b0\u4e00\u6b21\uff0c\u6301\u7eed\u5f15\u5165\u73b0\u4ee3\u5316\u7279\u6027\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

      • \n

        \u5b66\u4e60\u66f2\u7ebf\u5e73\u7f13<\/span><\/p>\n

          \n
        • \n

          \u8bed\u6cd5\u63a5\u8fd1\u81ea\u7136\u8bed\u8a00\uff0c\u9002\u5408\u65b0\u624b\u5165\u95e8\u3002<\/span><\/p>\n<\/li>\n

        • \n

          \u793e\u533a\u8d44\u6e90\u5e9e\u5927\uff08\u5982 MDN \u6587\u6863\u3001Stack Overflow\uff09\uff0c\u95ee\u9898\u89e3\u51b3\u8def\u5f84\u6e05\u6670\u3002<\/span><\/p>\n<\/li>\n

        • \n

          \u793e\u533a\u6d3b\u8dc3<\/span><\/strong><\/span>\uff1anpm \u662f\u5168\u7403\u6700\u5927\u7684\u5305\u4ed3\u5e93\uff0c\u793e\u533a\u652f\u6301\u4e30\u5bcc\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

          \n
          \n<\/div>\n

          2 \u7279\u6027\u548c\u7ec4\u6210<\/span><\/h2>\n

          2.1 JavaScript \u6838\u5fc3\u7279\u6027<\/span><\/h3>\n
            \n
          • \n

            \u5f31\u7c7b\u578b\u52a8\u6001<\/span><\/strong><\/span>\u8bed\u8a00\uff1a<\/span><\/p>\n

              \n
            • \n

              \u53d8\u91cf\u65e0\u9700\u9884\u58f0\u660e\u7c7b\u578b\uff0c\u65e0\u9700\u7f16\u8bd1\uff0c\u53d8\u91cf\u7c7b\u578b\u8fd0\u884c\u65f6\u81ea\u52a8\u63a8\u65ad\u786e\u5b9a\uff0c\u8fd0\u884c\u65f6<\/span>\u52a8\u6001<\/span><\/strong><\/span>\u89e3\u6790\u3002\u7531\u6d4f\u89c8\u5668\u6216Node.js\u5f15\u64ce\uff08\u5982V8\uff09\u76f4\u63a5<\/span>\u89e3\u91ca\u6267\u884c<\/span><\/strong><\/span>\uff0c\u7b80\u5316\u5f00\u53d1\u6d41\u7a0b\u3002<\/span><\/p>\n<\/li>\n

            • \n

              \u7075\u6d3b\u4f46\u9700\u6ce8\u610f\u7c7b\u578b\u8f6c\u6362\u95ee\u9898\uff0c\uff08\u5982 <\/span>let x = 10; x = \"hello\";<\/code><\/span>\uff09\uff0c\u652f\u6301\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\u3002<\/span><\/p>\n<\/li>\n

            • \n

              ES6 \u65b0\u589e <\/span>let<\/code><\/span>\/<\/span>const<\/code><\/span> \u63d0\u5347\u4e25\u8c28\u6027\uff0c\u58f0\u660e\u53ef\u4f7f\u7528<\/span>var<\/code><\/span>\uff08\u53d8\u91cf\uff09\u3001<\/span>let<\/code><\/span>\uff08\u5757\u7ea7\u4f5c\u7528\u57df\uff09\u3001<\/span>const<\/code><\/span>\uff08\u5e38\u91cf\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

            • \n

              \u51fd\u6570\u4f18\u5148<\/span><\/strong><\/span>\uff08\u51fd\u6570\u4e3a<\/span>\u4e00\u7b49\u516c\u6c11<\/span><\/strong><\/span>\uff09\uff1a<\/span> JavaScript \u5c06<\/span>\u51fd\u6570<\/span><\/strong><\/span>\u89c6\u4e3a\uff08<\/span>\u4e00\u7b49\u516c\u6c11<\/span><\/strong><\/span>\uff09\uff0c\u51fd\u6570\u53ef\u8d4b\u503c\u7ed9\u53d8\u91cf\u3001\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u6216\u8fd4\u56de\u503c\uff0c\u652f\u6301\u9ad8\u9636\u51fd\u6570\u4e0e\u95ed\u5305\uff0c\u9002\u5408\u51fd\u6570\u5f0f\u7f16\u7a0b\u3002<\/span><\/p>\n<\/li>\n

            • \n

              \u8bed\u6cd5<\/span>\u7075\u6d3b\u7b80\u6d01<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                \n
              • \n

                \u652f\u6301<\/span>\u51fd\u6570\u5f0f\u7f16\u7a0b<\/span><\/strong><\/span>\uff08\u5982\u7bad\u5934\u51fd\u6570 <\/span>const add = (a, b) => a + b;<\/code><\/span>\uff09<\/span><\/p>\n<\/li>\n

              • \n

                \u57fa\u4e8e\u539f\u578b\u7684\u9762\u5411\u5bf9\u8c61<\/span><\/strong><\/span>\uff0c\u901a\u8fc7\u539f\u578b\u94fe\uff08Prototype Chain\uff09\u5b9e\u73b0\u7ee7\u627f\uff08\u800c\u975e\u7c7b\uff09\uff0c\u7075\u6d3b\u6027\u9ad8\u3002ES6 \u540e\u65b0\u589e <\/span>class<\/code><\/span> \u8bed\u6cd5\u7cd6\u3002<\/span><\/p>\n<\/li>\n

              • \n

                \u6a21\u5757\u5316<\/span><\/strong><\/span>\uff1aES6 \u6a21\u5757\u6807\u51c6\uff08<\/span>import\/export<\/code><\/span>\uff09\u66ff\u4ee3\u4f20\u7edf\u811a\u672c\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

              • \n

                \u4e8b\u4ef6\u9a71\u52a8<\/span><\/strong><\/span>\u4e0e<\/span>\u5f02\u6b65\u7f16\u7a0b<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                  \n
                • \n

                  \u7279\u522b\u9002\u5408\u5904\u7406\u7f51\u9875\u4e2d\u7684\u4ea4\u4e92\u4e8b\u4ef6\uff0c\u9002\u5408\u5904\u7406\u9ad8\u5e76\u53d1\u573a\u666f\u3002<\/span><\/p>\n<\/li>\n

                • \n

                  \u5355\u7ebf\u7a0b\u4e8b\u4ef6\u5faa\u73af\u6a21\u578b\uff1a\u4e3b\u7ebf\u7a0b\u5904\u7406\u540c\u6b65\u4efb\u52a1\uff0c\u901a\u8fc7\u4e8b\u4ef6\u5faa\u73af\uff08Event Loop\uff09\u673a\u5236\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\uff0c\u5f02\u6b65\u5904\u7406\u7528\u6237\u64cd\u4f5c\uff08\u70b9\u51fb\u3001\u7f51\u7edc\u8bf7\u6c42\uff09\uff0c\u907f\u514d\u963b\u585e\u4e3b\u7ebf\u7a0b\uff0c\u907f\u514d\u9875\u9762\u963b\u585e\uff08\u5982 Ajax \u8bf7\u6c42\uff09\u3002<\/span><\/p>\n<\/li>\n

                • \n

                  \u5f02\u6b65\u64cd\u4f5c\uff08\u5982\u7f51\u7edc\u8bf7\u6c42\uff09\u901a\u8fc7\u56de\u8c03\u51fd\u6570\u3001Promise \u6216 <\/span>async\/await<\/code><\/span> \u4ea4\u7531\u4e8b\u4ef6\u5faa\u73af\u7ba1\u7406\uff0c\u5904\u7406\u975e\u963b\u585e\u64cd\u4f5c\u3002<\/span><\/p>\n<\/li>\n

                • \n

                  \u5178\u578b\u573a\u666f\uff1a\u9ad8\u5e76\u53d1\u670d\u52a1\u5668\uff08Node.js\uff09\u3001\u5b9e\u65f6\u4ea4\u4e92\uff08WebSocket\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                • \n

                  \u8de8\u5e73\u53f0\u517c\u5bb9<\/span><\/strong><\/span>\u6267\u884c\uff1a<\/span><\/p>\n

                    \n
                  • \n

                    \u6d4f\u89c8\u5668\u7aef\uff1a\u6240\u6709\u73b0\u4ee3\u4e3b\u6d41\u6d4f\u89c8\u5668\uff08Chrome\u3001Firefox\u3001Edge \u7b49\uff09\u5747\u5185\u7f6e JavaScript \u5f15\u64ce\uff08\u5982 V8\u3001SpiderMonkey\uff09\uff0c\u901a\u8fc7 V8\uff08Chrome\uff09\u3001SpiderMonkey\uff08Firefox\uff09\u7b49\u5f15\u64ce\u76f4\u63a5\u89e3\u6790\u6267\u884c\uff0c\u65e0\u9700\u7f16\u8bd1\u3002<\/span><\/p>\n<\/li>\n

                  • \n

                    \u670d\u52a1\u5668\u7aef\uff1aNode.js \u6269\u5c55\u4e86 JavaScript \u7684\u8fd0\u884c\u73af\u5883\uff0c\u652f\u6301\u540e\u7aef\u5f00\u53d1\uff08\u5982 API \u63a5\u53e3\u3001\u5b9e\u65f6\u901a\u4fe1\uff09\u3002<\/span><\/p>\n<\/li>\n

                  • \n

                    \u79fb\u52a8\/\u684c\u9762\u7aef\uff1aReact Native\u3001Electron \u7b49\u6846\u67b6\u5b9e\u73b0\u8de8\u5e73\u53f0\u5e94\u7528\u5f00\u53d1\uff08\u5982 VS Code \u684c\u9762\u7248\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                  • \n

                    \u4e30\u5bcc\u7684<\/span>\u751f\u6001\u7cfb\u7edf<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                      \n
                    • \n

                      \u62e5\u6709\u5927\u91cf\u5e93\uff08\u5982 jQuery\u3001React\u3001Vue\uff09\u548c\u6846\u67b6\uff08\u5982 Express\u3001Angular\uff09\uff0c\u4ee5\u53ca\u5305\u7ba1\u7406\u5de5\u5177\uff08npm\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                      2.2 Web \u5f00\u53d1\u6838\u5fc3\u7ec4\u6210<\/span><\/h3>\n
                        \n
                      • \n

                        ECMAScript<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                        JavaScript \u8bed\u8a00\u57fa\u7840\uff08\u8bed\u6cd5\u3001\u7c7b\u578b\u3001\u8bed\u53e5\uff09\u3002<\/span><\/p>\n<\/li>\n

                      • \n

                        BOM\uff08\u6d4f\u89c8\u5668\u5bf9\u8c61\u6a21\u578b\uff09<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                        \u63a7\u5236\u6d4f\u89c8\u5668\u884c\u4e3a\uff08\u7a97\u53e3\u3001\u5386\u53f2\u3001\u5b9a\u4f4d\uff09\u3002<\/span><\/p>\n<\/li>\n

                      • \n

                        DOM\uff08\u6587\u6863\u5bf9\u8c61\u6a21\u578b\uff09<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                        \u64cd\u4f5c HTML\/XML \u5143\u7d20\uff08\u5982\u4fee\u6539\u5185\u5bb9\u3001\u6837\u5f0f\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n

                        \n
                        \n<\/div>\n

                        3 \u5e94\u7528\u548c\u6280\u672f\u6808<\/span><\/h2>\n

                        3.1 \u5e94\u7528\u9886\u57df<\/span><\/h3>\n

                        JavaScript \u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u4e3b\u8981\u7528\u4e8e Web \u5f00\u53d1\u7684\u524d\u7aef\u548c\u540e\u7aef\u5168\u6808\u5f00\u53d1\u3002<\/span><\/p>\n

                          \n
                        • \n

                          \u524d\u7aef\u5f00\u53d1<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                          JavaScript \u662f\u524d\u7aef\u5f00\u53d1\u7684\u6838\u5fc3\u8bed\u8a00\uff0c\u5b9e\u73b0\u6d4f\u89c8\u5668\u7aef\u7f51\u9875\u7684\u52a8\u6001\u4ea4\u4e92\uff08\u5982 DOM \u64cd\u4f5c\u3001\u52a8\u6001\u66f4\u65b0 DOM\u3001\u8868\u5355\u9a8c\u8bc1\u3001\u52a8\u6001\u5185\u5bb9\u6e32\u67d3\uff08\u5982 AJAX \u5f02\u6b65\u52a0\u8f7d\u6570\u636e\uff09\u3001\u52a8\u753b\u6548\u679c\u3001\u52a8\u753b React\/Vue\/Angular \u6846\u67b6\u3001\u7528\u6237\u4e8b\u4ef6\u5904\u7406\u3001\u7528\u6237\u4ea4\u4e92\u7b49\uff09\u3002<\/span><\/p>\n

                            \n
                          • \n

                            DOM \u64cd\u4f5c<\/span><\/strong><\/span>\uff1a\u4e0e HTML \u548c CSS \u534f\u540c\u5de5\u4f5c\uff0c\u52a8\u6001\u4fee\u6539\u7f51\u9875\u5185\u5bb9\u3001\u6837\u5f0f\u548c\u7ed3\u6784\u3002<\/span><\/p>\n<\/li>\n

                          • \n

                            \u7528\u6237\u4ea4\u4e92<\/span><\/strong><\/span>\uff1a\u54cd\u5e94\u70b9\u51fb\u3001\u6eda\u52a8\u3001\u8f93\u5165\u7b49\u4e8b\u4ef6\u3002<\/span><\/p>\n<\/li>\n

                          • \n

                            \u52a8\u753b\u4e0e\u56fe\u5f62<\/span><\/strong><\/span>\uff1a\u4f7f\u7528 Canvas \u6216 WebGL \u5b9e\u73b0 2D\/3D \u6e32\u67d3\u3002<\/span><\/p>\n<\/li>\n

                          • \n

                            \u5355\u9875\u5e94\u7528\uff08SPA\uff09<\/span><\/strong><\/span>\uff1a\u901a\u8fc7 React\u3001Vue \u7b49\u6846\u67b6\u6784\u5efa\u590d\u6742\u7684 Web \u5e94\u7528\u3002React Router \u7ba1\u7406\u8def\u7531\uff0cRedux \u72b6\u6001\u7ba1\u7406\u3002<\/span><\/p>\n<\/li>\n

                          • \n

                            \u670d\u52a1\u7aef\u6e32\u67d3\uff08SSR\uff09<\/span><\/strong><\/span>\uff1aNext.js \u4f18\u5316 SEO \u548c\u9996\u5c4f\u52a0\u8f7d\u901f\u5ea6\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                          • \n

                            \u540e\u7aef\u5f00\u53d1<\/span><\/strong><\/span>\uff08Node.js\uff09\uff1a<\/span><\/p>\n

                              \n
                            • \n

                              \u501f\u52a9 Node.js \u5e73\u53f0\uff0cJavaScript \u53ef\u4ee5\u8fdb\u884c\u540e\u7aef\u5f00\u53d1\uff0c\u6784\u5efa\u9ad8\u6027\u80fd\u7684\u670d\u52a1\u5668\u7aef\u5e94\u7528\u7a0b\u5e8f\u3002<\/span><\/p>\n<\/li>\n

                            • \n

                              \u901a\u8fc7 Node.js \u6784\u5efa\u9ad8\u6027\u80fd\u7684\u670d\u52a1\u5668\u7aef\u5e94\u7528\uff08\u5982 Express.js\uff09\u548c API\u3002<\/span><\/p>\n<\/li>\n

                            • \n

                              Node.js \u7684\u975e\u963b\u585e I\/O \u548c\u4e8b\u4ef6\u9a71\u52a8\u7279\u6027\u4f7f\u5f97 JavaScript \u5728\u5904\u7406\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u5177\u6709\u4f18\u52bf\u3002<\/span><\/p>\n<\/li>\n

                            • \n

                              \u6784\u5efa RESTful API\u3001\u5b9e\u65f6\u901a\u4fe1\uff08WebSocket\uff09\u548c\u5fae\u670d\u52a1\u3002<\/span><\/p>\n<\/li>\n

                            • \n

                              \u4e0e\u6570\u636e\u5e93\uff08MySQL\u3001MongoDB\uff09\u4ea4\u4e92\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                            • \n

                              \u8de8\u5e73\u53f0\u5f00\u53d1<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                                \n
                              • \n

                                \u79fb\u52a8\u5e94\u7528\uff1a\u901a\u8fc7 <\/span>React Native<\/span><\/strong><\/span>\u3001<\/span>Ionic<\/span><\/strong><\/span> \u7b49\u6846\u67b6\uff0c\u5f00\u53d1\u8de8\u5e73\u53f0\u79fb\u52a8\u5e94\u7528\uff0c\u5b9e\u73b0\u4e00\u5957\u4ee3\u7801\u5728\u591a\u4e2a\u79fb\u52a8\u5e73\u53f0\u4e0a\u7684\u8fd0\u884c\u3002<\/span><\/p>\n<\/li>\n

                              • \n

                                \u684c\u9762\u5e94\u7528\uff1a\u4f7f\u7528 <\/span>Electron<\/span><\/strong><\/span> \u7b49\u6846\u67b6\uff0c\u5c01\u88c5 Web \u6280\u672f\uff0c\u5f00\u53d1\u6784\u5efa\u5982 VS Code\u3001Slack \u5ba2\u6237\u7aef\u7b49\u684c\u9762\u5e94\u7528\u7a0b\u5e8f\uff0c\u5c06\u7f51\u9875\u6280\u672f\u4e0e\u684c\u9762\u5e94\u7528\u7684\u4f18\u52bf\u76f8\u7ed3\u5408\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                              • \n

                                \u811a\u672c\u5de5\u5177<\/span><\/strong><\/span>\uff1a\u81ea\u52a8\u5316\u4efb\u52a1\u3001\u6d4f\u89c8\u5668\u6269\u5c55<\/span><\/p>\n<\/li>\n

                              • \n

                                \u65b0\u5174\u9886\u57df\u6269\u5c55<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                                  \n
                                • \n

                                  \u6e38\u620f\u5f00\u53d1\uff1a\u7ed3\u5408 Canvas \u6216 WebGL \u521b\u5efa\u7f51\u9875\u6e38\u620f\uff0cWeb\u6e38\u620f\uff08Phaser.js\uff09\uff0c\uff08Three.js\uff09\u7b49\u573a\u666f\u3002<\/span><\/p>\n<\/li>\n

                                • \n

                                  \u7269\u8054\u7f51\uff08IoT\uff09<\/span><\/strong><\/span>\uff1a\u901a\u8fc7 Node.js \u63a7\u5236\u786c\u4ef6IoT\u8bbe\u5907\uff0cNode-RED \u7ed3\u5408 MQTT \u534f\u8bae\u5b9e\u73b0\u8bbe\u5907\u901a\u4fe1\u3002<\/span><\/p>\n<\/li>\n

                                • \n

                                  \u673a\u5668\u5b66\u4e60<\/span><\/strong><\/span>\uff1a\u4f7f\u7528 TensorFlow.js \u5728\u6d4f\u89c8\u5668\u7aef\u8fd0\u884c\u8f7b\u91cf\u7ea7\u8bad\u7ec3\u6a21\u578b\uff08\u5982\u56fe\u50cf\u5206\u7c7b\uff09\u3002<\/span><\/p>\n<\/li>\n

                                • \n

                                  \u533a\u5757\u94fe\uff1a\u4ee5\u592a\u574a\u667a\u80fd\u5408\u7ea6\u5f00\u53d1\uff08\u5982 Solidity \u8bed\u6cd5\u4e0e JavaScript \u76f8\u4f3c\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                  \n\n\n\n\n\n\n\n\n
                                  \u9886\u57df<\/span><\/strong><\/span><\/span><\/th>\n\u5178\u578b\u7528\u9014<\/span><\/strong><\/span><\/span><\/th>\n\u4ee3\u8868\u6280\u672f\/\u5e93<\/span><\/strong><\/span><\/span><\/th>\n<\/tr>\n<\/thead>\n
                                  \u7f51\u9875\u4ea4\u4e92<\/span><\/strong><\/span><\/span><\/td>\nDOM \u64cd\u4f5c\u3001\u8868\u5355\u9a8c\u8bc1\u3001\u52a8\u6001\u5185\u5bb9\u52a0\u8f7d<\/span><\/span><\/td>\nReact\/Vue\/Angular<\/span><\/span><\/td>\n<\/tr>\n
                                  \u670d\u52a1\u7aef<\/span><\/strong><\/span><\/span><\/td>\n\u540e\u7aef API\u3001\u5b9e\u65f6\u901a\u4fe1\u3001\u5fae\u670d\u52a1<\/span><\/span><\/td>\nNode.js\u3001Express<\/span><\/span><\/td>\n<\/tr>\n
                                  \u79fb\u52a8\u5f00\u53d1<\/span><\/strong><\/span><\/span><\/td>\n\u8de8\u5e73\u53f0\u5e94\u7528\u5f00\u53d1<\/span><\/span><\/td>\nReact Native\u3001Ionic<\/span><\/span><\/td>\n<\/tr>\n
                                  \u684c\u9762\u5e94\u7528<\/span><\/strong><\/span><\/span><\/td>\n\u8de8\u64cd\u4f5c\u7cfb\u7edf\u684c\u9762\u7a0b\u5e8f<\/span><\/span><\/td>\nElectron\u3001NW.js<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

                                  3.2 \u5e94\u7528\u573a\u666f\u5bf9\u6bd4<\/span><\/h3>\n
                                  \n\n\n\n\n\n\n\n\n
                                  \u573a\u666f<\/span><\/span><\/th>\n\u6280\u672f\u65b9\u6848<\/span><\/span><\/th>\n\u4f18\u52bf<\/span><\/span><\/th>\n<\/tr>\n<\/thead>\n
                                  \u5b9e\u65f6\u901a\u4fe1<\/span><\/span><\/td>\nWebSocket + Socket.IO<\/span><\/span><\/td>\n\u4f4e\u5ef6\u8fdf\u53cc\u5411\u901a\u4fe1<\/span><\/span><\/td>\n<\/tr>\n
                                  \u72b6\u6001\u7ba1\u7406<\/span><\/span><\/td>\nRedux \/ Vuex<\/span><\/span><\/td>\n\u53ef\u9884\u6d4b\u6570\u636e\u6d41<\/span><\/span><\/td>\n<\/tr>\n
                                  \u9759\u6001\u7ad9\u70b9<\/span><\/span><\/td>\nNext.js \/ Gatsby<\/span><\/span><\/td>\nSEO \u53cb\u597d + \u670d\u52a1\u7aef\u6e32\u67d3<\/span><\/span><\/td>\n<\/tr>\n
                                  \u5fae\u524d\u7aef\u67b6\u6784<\/span><\/span><\/td>\nModule Federation<\/span><\/span><\/td>\n\u72ec\u7acb\u90e8\u7f72\u7684\u7ec4\u4ef6\u96c6\u6210<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

                                  3.3 \u73b0\u4ee3\u5f00\u53d1\u6280\u672f\u6808<\/span><\/h3>\n
                                    \n
                                  • \n

                                    \u6846\u67b6<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                                      \n
                                    • \n

                                      React<\/span><\/strong><\/span>\uff08\u7ec4\u4ef6\u5316\uff09\uff1a\u7528\u4e8e\u6784\u5efa\u7528\u6237\u754c\u9762\u7684 JavaScript \u5e93\u3002<\/span><\/p>\n<\/li>\n

                                    • \n

                                      Vue.js<\/span><\/strong><\/span>\uff08\u54cd\u5e94\u5f0f\uff09\uff1a\u6e10\u8fdb\u5f0f JavaScript \u6846\u67b6\u3002<\/span><\/p>\n<\/li>\n

                                    • \n

                                      Angular<\/span><\/strong><\/span>\uff08\u4f01\u4e1a\u7ea7\uff09\uff1a\u5b8c\u6574\u7684\u524d\u7aef\u6846\u67b6\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                    • \n

                                      \u6784\u5efa\u5de5\u5177<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                                        \n
                                      • \n

                                        Webpack\uff08\u6a21\u5757\u6253\u5305\uff09\u3001Vite\uff08\u6781\u901f\u70ed\u66f4\u65b0\uff09<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                      • \n

                                        \u7c7b\u578b\u6269\u5c55<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                                          \n
                                        • \n

                                          TypeScript\uff08\u9759\u6001\u7c7b\u578b\u68c0\u67e5\uff09<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                        • \n

                                          \u8fd0\u884c\u65f6<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                                            \n
                                          • \n

                                            Node.js<\/span><\/strong><\/span>\uff08Chrome V8 \u5f15\u64ce\uff09\uff1a\u670d\u52a1\u5668\u7aef JavaScript \u8fd0\u884c\u73af\u5883\u3002<\/span><\/p>\n<\/li>\n

                                          • \n

                                            Deno\uff08\u5b89\u5168\u4f18\u5148\uff09<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                          • \n

                                            \u5e94\u7528<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n

                                              \n
                                            • \n

                                              Express<\/span><\/strong><\/span>\uff1a\u57fa\u4e8e Node.js \u7684 Web \u5e94\u7528\u6846\u67b6\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

                                              3.4 \u53d1\u5c55\u8d8b\u52bf<\/span><\/h3>\n
                                                \n
                                              • \n

                                                \u6027\u80fd\u6301\u7eed\u4f18\u5316<\/span><\/strong><\/span><\/p>\n

                                                  \n
                                                • \n

                                                  WebAssembly \u96c6\u6210\u7ed3\u5408<\/span><\/strong><\/span>\uff1a\u9ad8\u6027\u80fd\u8ba1\u7b97\uff0cJS \u8c03\u7528\uff08C++\/Rust\uff09\u9ad8\u6027\u80fd\u6a21\u5757\u7f16\u8bd1\u8fd0\u884c\u3002WebAssembly \u5141\u8bb8 C\/C++ \u4ee3\u7801\u4e0e JavaScript \u6df7\u5408\u8fd0\u884c\uff0c\u7a81\u7834\u6027\u80fd\u74f6\u9888\u3002<\/span><\/p>\n<\/li>\n

                                                • \n

                                                  V8 \u5f15\u64ce\u5f15\u5165 TurboFan \u7f16\u8bd1\u5668\uff0c\u63d0\u5347\u590d\u6742\u903b\u8f91\u6267\u884c\u6548\u7387\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                                • \n

                                                  \u8bed\u8a00\u7279\u6027\u6f14\u8fdb<\/span><\/strong><\/span><\/p>\n

                                                    \n
                                                  • \n

                                                    TypeScript\u5174\u8d77<\/span><\/strong><\/span>\uff1a\u5fae\u8f6f\u5f00\u53d1\u7684\u8d85\u96c6\u8bed\u8a00\uff0c\u9759\u6001\u7c7b\u578b\u589e\u5f3a\u4ee3\u7801\u5065\u58ee\u6027\u3002\u901a\u8fc7\u9759\u6001\u7c7b\u578b\u68c0\u67e5\u51cf\u5c11\u8fd0\u884c\u65f6\u9519\u8bef\u3002<\/span><\/p>\n<\/li>\n

                                                  • \n

                                                    ECMAScript \u6bcf\u5e74\u66f4\u65b0\uff1aES2025 \u8ba1\u5212\u5f15\u5165\u6a21\u5f0f\u5339\u914d\u3001\u88c5\u9970\u5668\u7b49\u7279\u6027\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                                  • \n

                                                    \u67b6\u6784\u6a21\u5f0f\u521b\u65b0<\/span><\/strong><\/span><\/p>\n

                                                      \n
                                                    • \n

                                                      \u5fae\u524d\u7aef\uff1a\u5c06\u5355\u4f53\u5e94\u7528\u62c6\u5206\u4e3a\u72ec\u7acb\u6a21\u5757\uff08\u5982 Webpack 5 Module Federation\uff09\u3002<\/span><\/p>\n<\/li>\n

                                                    • \n

                                                      Serverless\uff1aAWS Lambda\u3001\u963f\u91cc\u4e91\u51fd\u6570\u8ba1\u7b97\u652f\u6301\u4e8b\u4ef6\u9a71\u52a8\u7684\u65e0\u670d\u52a1\u5668\u5f00\u53d1\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                                    • \n

                                                      \u884c\u4e1a\u6df1\u5ea6\u878d\u5408<\/span><\/strong><\/span><\/p>\n

                                                        \n
                                                      • \n

                                                        PWA\uff08\u6e10\u8fdb\u5f0f Web \u5e94\u7528\uff09\uff1a\u7ed3\u5408 Service Worker \u5b9e\u73b0\u79bb\u7ebf\u8bbf\u95ee\u548c\u6d88\u606f\u63a8\u9001\u3002<\/span><\/p>\n<\/li>\n

                                                      • \n

                                                        \u667a\u80fd\u8bbe\u5907\u63a7\u5236\uff1aJavaScript \u901a\u8fc7 Node.js \u63a7\u5236\u673a\u5668\u4eba\u3001\u667a\u80fd\u5bb6\u5c45\u8bbe\u5907\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n

                                                      • \n

                                                        AI \u5f00\u53d1<\/span><\/strong><\/span>\uff1aTensorFlow.js \u5b9e\u73b0\u6d4f\u89c8\u5668\u7aef\u673a\u5668\u5b66\u4e60<\/span><\/p>\n<\/li>\n

                                                      • \n

                                                        \u8fb9\u7f18\u8ba1\u7b97<\/span><\/strong><\/span>\uff1aCloudflare Workers \u8fb9\u7f18 JS \u8fd0\u884c\u65f6<\/span><\/p>\n<\/li>\n

                                                      • \n

                                                        \u5143\u5b87\u5b99\u652f\u6301<\/span><\/strong><\/span>\uff1aThree.js\/Babylon.js \u6784\u5efa Web3D \u5e94\u7528<\/span><\/p>\n<\/li>\n

                                                      • \n

                                                        \u6846\u67b6\u6301\u7eed\u6f14\u8fdb<\/span><\/strong><\/span>\uff1a\u5982Next.js\uff08\u670d\u52a1\u7aef\u6e32\u67d3\uff09\u3001Deno\uff08\u5b89\u5168\u8fd0\u884c\u65f6\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n

                                                        3.5 JavaScript \u6700\u65b0\u53d1\u5c55\uff08ES2025\uff09<\/span><\/h3>\n

                                                        2025 \u5e74\u7684 ECMAScript \u6807\u51c6\uff08ES2025\uff09\u5f15\u5165\u4e86\u591a\u9879\u5b9e\u7528\u7279\u6027\uff1a<\/span><\/p>\n

                                                          \n
                                                        • \n

                                                          Promise.try()<\/code><\/span>\uff1a\u7edf\u4e00\u5904\u7406\u540c\u6b65\u548c\u5f02\u6b65\u5f02\u5e38\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n

                                                          Promise<\/span>.try<\/span>(() =><\/span> {<\/span>\r\n \u00a0 \u00a0if<\/span> (Math<\/span>.random<\/span>() <<\/span> 0.5<\/span>) throw<\/span> new<\/span> Error<\/span>(\"\u540c\u6b65\u9519\u8bef\"<\/span>);<\/span>\r\n \u00a0return<\/span> \"\u6210\u529f\"<\/span>;<\/span>\r\n}).catch<\/span>(err<\/span> =><\/span> console<\/span>.error<\/span>(err<\/span>));<\/span><\/pre>\n
                                                            \n
                                                          • \n
                                                            Set<\/code><\/span> \u96c6\u5408<\/span><\/strong><\/span>\u8fd0\u7b97\uff1a\u539f\u751f\u652f\u6301\u4ea4\u96c6\u3001\u5e76\u96c6\u3001\u5dee\u96c6\u7b49\u64cd\u4f5c\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                            const<\/span> A<\/span> =<\/span> new<\/span> Set<\/span>([1<\/span>, 2<\/span>, 3<\/span>]);<\/span>\r\nconst<\/span> B<\/span> =<\/span> new<\/span> Set<\/span>([3<\/span>, 4<\/span>, 5<\/span>]);<\/span>\r\nconsole<\/span>.log<\/span>(A<\/span>.union<\/span>(B<\/span>)); \/\/ Set(5) {1, 2, 3, 4, 5}<\/span><\/span><\/pre>\n
                                                              \n
                                                            • \n
                                                              \u6b63\u5219\u8868\u8fbe\u5f0f<\/span><\/strong><\/span>\u589e\u5f3a\uff1a\u652f\u6301\u91cd\u590d\u547d\u540d\u6355\u83b7\u7ec4\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                              const<\/span> regex<\/span> =<\/span> \/(?<year>\\d{4})-(?<month>\\d{2})-(?<day>\\d{2})\/<\/span>v<\/span>;<\/span>\r\nconst<\/span> match<\/span> =<\/span> regex<\/span>.exec<\/span>(\"2025-08-18\"<\/span>);<\/span>\r\nconsole<\/span>.log<\/span>(match<\/span>.groups<\/span>.year<\/span>); \/\/ 2025<\/span><\/span><\/pre>\n
                                                              \n
                                                              \n<\/div>\n
                                                              4 \u7f16\u7a0b\u89c4\u8303<\/span><\/h2>\n
                                                              4.1 JS \u8bed\u6cd5\u6982\u8ff0<\/span><\/h3>\n
                                                               JavaScript \u7684\u8bed\u6cd5\u4e0e Java\u3001C \u7b49\u8bed\u8a00\u6709\u76f8\u4f3c\u4e4b\u5904\uff0c\u5305\u542b\u53d8\u91cf\u58f0\u660e\u3001\u8fd0\u7b97\u7b26\u3001\u6d41\u7a0b\u63a7\u5236\u8bed\u53e5\uff08\u5982 if \u8bed\u53e5\u3001for \u5faa\u73af\u3001switch \u8bed\u53e5\u7b49\uff09\u3002<\/span><\/p>\n
                                                              4.2 \u7f16\u6210\u89c4\u8303<\/span><\/h3>\n
                                                                \n
                                                              • \n
                                                                \u53d8\u91cf<\/span><\/strong><\/span>\uff1a\u5176\u503c\u5728\u7a0b\u5e8f\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u662f\u53ef\u53d8\uff0c\u7528\u4e8e\u5b58\u50a8\u67d0\u79cd\u6570\u636e\/\u67d0\u4e9b\u6570\u503c\u7684\u5b58\u50a8\u5668\uff0c\u60f3\u8c61\u6210\u5b58\u50a8\u7269\u54c1\u7684\u76d2\u5b50\u3002<\/span><\/p>\n<\/li>\n
                                                              • \n
                                                                \u53d8\u91cf\u547d\u540d<\/span><\/strong><\/span>\uff1a\u7528\u4e8e\u533a\u5206\u5b58\u50a8\u5668\uff08\u76d2\u5b50\uff09\uff0c\u5fc5\u987b\u4ee5\u5b57\u6bcd\u3001\u4e0b\u5212\u7ebf\uff08<\/span>_<\/code><\/span>\uff09\u6216\u7f8e\u5143\u7b26\u53f7\uff08<\/span>$<\/code><\/span>\uff09\u5f00\u5934\uff0c\u540e\u9762\u53ef\u4ee5\u8ddf\u5b57\u6bcd\u3001\u4e0b\u5212\u7ebf\u3001\u7f8e\u5143\u7b26\u53f7\u548c\u6570\u5b57\u3002\u53d8\u91cf\u540d\u533a\u5206\u5927\u5c0f\u5199\uff0c\u4e14\u4e0d\u5141\u8bb8\u4f7f\u7528 JavaScript \u5173\u952e\u5b57\u548c JavaScript \u4fdd\u7559\u5b57\u505a\u53d8\u91cf\u540d\u3002<\/span><\/p>\n<\/li>\n
                                                              • \n
                                                                \u5173\u952e\u5b57<\/span><\/strong><\/span>\uff1a<\/span>break<\/code><\/span>\uff0c<\/span>case<\/code><\/span>\uff0c<\/span>catch<\/code><\/span>\uff0c<\/span>default<\/code><\/span>\uff0c<\/span>delete<\/code><\/span>\uff0c<\/span>do<\/code><\/span>\uff0c<\/span>else<\/code><\/span>\uff0c<\/span>finally<\/code><\/span>\uff0c<\/span>for<\/code><\/span>\uff0c<\/span>if<\/code><\/span>\uff0c<\/span>in<\/code><\/span>\uff0c<\/span>instanceof<\/code><\/span>\uff0c<\/span>new<\/code><\/span>\uff0c<\/span>return<\/code><\/span>\uff0c<\/span>switch<\/code><\/span>\uff0c<\/span>throw<\/code><\/span>\uff0c<\/span>try<\/code><\/span>\uff0c<\/span>typeof<\/code><\/span>\uff0c<\/span>var<\/code><\/span>\uff0c<\/span>void<\/code><\/span>\uff0c<\/span>while<\/code><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                              • \n
                                                                \u4fdd\u7559\u5b57<\/span><\/strong><\/span>\uff1a<\/span>abstract<\/code><\/span>\uff0c<\/span>boolean<\/code><\/span>\uff0c<\/span>byte<\/code><\/span>\uff0c<\/span>char<\/code><\/span>\uff0c<\/span>class<\/code><\/span>\uff0c<\/span>const<\/code><\/span>\uff0c<\/span>debugger<\/code><\/span>\uff0c<\/span>double<\/code><\/span>\uff0c<\/span>enum<\/code><\/span>\uff0c<\/span>export<\/code><\/span>\uff0c<\/span>extends<\/code><\/span>\uff0c<\/span>final<\/code><\/span>\uff0c<\/span>float<\/code><\/span>\uff0c<\/span>goto<\/code><\/span>\uff0c<\/span>implements<\/code><\/span>\uff0c<\/span>import<\/code><\/span>\uff0c<\/span>int<\/code><\/span>\uff0c<\/span>interface<\/code><\/span>\uff0c<\/span>long<\/code><\/span>\uff0c<\/span>native<\/code><\/span>\uff0c<\/span>package<\/code><\/span>\uff0c<\/span>private<\/code><\/span>\uff0c<\/span>protected<\/code><\/span>\uff0c<\/span>public<\/code><\/span>\uff0c<\/span>short<\/code><\/span>\uff0c<\/span>static<\/code><\/span>\uff0c<\/span>super<\/code><\/span>\uff0c<\/span>synchronized<\/code><\/span>\uff0c<\/span>throws<\/code><\/span>\uff0c<\/span>transient<\/code><\/span>\uff0c<\/span>volatile<\/code><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                              • \n
                                                                \u5927\u5c0f\u5199<\/span><\/strong><\/span>\uff1aJavaScript \u533a\u5206\u5927\u5c0f\u5199\u3002<\/span><\/p>\n<\/li>\n
                                                              • \n
                                                                \u8868\u8fbe\u5f0f<\/span><\/strong><\/span>\uff1a\u8868\u8fbe\u5f0f\u662f\u6307\u5177\u6709\u4e00\u5b9a\u7684\u503c\uff0c\u7528<\/span>\u64cd\u4f5c\u7b26<\/span><\/strong><\/span>\u628a\u5e38\u6570\u548c\u53d8\u91cf\u8fde\u63a5\u8d77\u6765\u7684<\/span>\u4ee3\u6570\u5f0f<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                              • \n
                                                                \u64cd\u4f5c\u7b26<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n
                                                                  \n
                                                                • \n
                                                                  \u7b97\u672f\u64cd\u4f5c\u7b26\uff1a\uff08<\/span>+<\/code><\/span> \u52a0\u6cd5\u3001<\/span>-<\/code><\/span> \u51cf\u6cd5\u3001<\/span>*<\/code><\/span> \u4e58\u6cd5\u3001<\/span>\/<\/code><\/span> \u9664\u6cd5\u3001<\/span>%<\/code><\/span> \u4f59\u6570\u3001<\/span>++<\/code><\/span> \u81ea\u52a0\u4e00\u3001<\/span>--<\/code><\/span> \u81ea\u51cf\u4e00\uff09<\/span><\/p>\n<\/li>\n
                                                                • \n
                                                                  \u6bd4\u8f83\u64cd\u4f5c\u7b26\uff1a\uff08<\/span><<\/code><\/span> \u5c0f\u4e8e\u3001<\/span>><\/code><\/span> \u5927\u4e8e\u3001<\/span><=<\/code><\/span> \u5c0f\u4e8e\u7b49\u4e8e\u3001<\/span>>=<\/code><\/span> \u5927\u4e8e\u7b49\u4e8e\u3001<\/span>==<\/code><\/span>\u7b49\u4e8e\u3001<\/span>!=<\/code><\/span> \u4e0d\u7b49\u4e8e\u3001<\/span>===<\/code><\/span> \u503c\u53ca\u7c7b\u578b\u5747\u76f8\u7b49\uff08\u6052\u7b49\u4e8e\uff09\u3001<\/span>!==<\/code><\/span>\u503c\u4e0e\u7c7b\u578b\u5747\u4e0d\u7b49\uff08\u4e0d\u6052\u7b49\u4e8e\uff09\uff09<\/span><\/p>\n<\/li>\n
                                                                • \n
                                                                  \u6761\u4ef6\u8fd0\u7b97\u7b26\uff1a\uff08<\/span>\u53d8\u91cf = (\u6761\u4ef6) ? \u503c1:\u503c2<\/code><\/span> \u7b26\u5408\u6761\u4ef6\u8d4b\u503c1\uff0c\u4e0d\u7b26\u5408\u8d4b\u503c2\uff09<\/span><\/p>\n<\/li>\n
                                                                • \n
                                                                  \u903b\u8f91\u64cd\u4f5c\u7b26\uff1a\uff08<\/span>&&<\/code><\/span>\u4e0e\u3001<\/span>||<\/code><\/span> \u6216\u3001<\/span>\uff01<\/code><\/span> \u975e\uff09<\/span><\/p>\n<\/li>\n
                                                                • \n
                                                                  \u4f4d\u8fd0\u7b97\u7b26\uff1a\uff08<\/span>&<\/code><\/span> \u4f4d\u4e0e\u3001<\/span>|<\/code><\/span> \u4f4d\u6216\u3001<\/span>~<\/code><\/span> \u53d6\u53cd\u3001<\/span>^<\/code><\/span> \u5f02\u6216\u3001<\/span><<<\/code><\/span>\u5de6\u79fb\u3001<\/span>>><\/code><\/span> \u53f3\u79fb\uff09<\/span><\/p>\n<\/li>\n
                                                                • \n
                                                                  \u5b57\u7b26\u4e32\u8fde\u63a5\u64cd\u4f5c\u7b26\uff1a\uff08<\/span>+<\/code><\/span> \u8fde\u63a5\u8fd0\u7b97\u7b26\u3001<\/span>+=<\/code><\/span>\uff09<\/span><\/p>\n<\/li>\n
                                                                • \n
                                                                  \u8d4b\u503c\u8fd0\u7b97\u7b26\uff1a\uff08<\/span>=<\/code><\/span> \u8d4b\u503c\u3001<\/span>+=<\/code><\/span>\u3001<\/span>-=<\/code><\/span>\u3001<\/span>*=<\/code><\/span>\u3001<\/span>\/=<\/code><\/span>\u3001<\/span>%=<\/code><\/span>\uff09<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                  \u64cd\u4f5c\u7b26\u4e4b\u95f4\u7684<\/span>\u4f18\u5148\u7ea7<\/span><\/strong><\/span>\uff08\u5de6\u8fb9<\/span>\u9ad8<\/span><\/strong><\/span>\u5230\u53f3\u8fb9<\/span>\u4f4e<\/span><\/strong><\/span>\uff09\uff1a<\/span><\/p>\n
                                                                    \n
                                                                  • \n
                                                                    \u7b97\u672f\u64cd\u4f5c\u7b26 \u2192 \u6bd4\u8f83\u64cd\u4f5c\u7b26 \u2192 \u903b\u8f91\u64cd\u4f5c\u7b26 \u2192 “=”\u8d4b\u503c\u7b26\u53f7<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                    \u5982\u679c\u8981\u6539\u53d8\u8fd0\u7b97\u987a\u5e8f\uff0c\u9700\u6dfb\u52a0 <\/span>()<\/code><\/span> \u62ec\u53f7<\/span><\/strong><\/span>\u7684\u65b9\u6cd5\u6765\u6539\u53d8\u4f18\u5148\u7ea7\u3002<\/span><\/p>\n<\/li>\n
                                                                  • \n
                                                                    \u8bed\u53e5\u7ed3\u675f<\/span><\/strong><\/span>\uff1a\u901a\u5e38\u5728\u6bcf\u6761\u8bed\u53e5\u7684\u7ed3\u5c3e\u52a0\u4e0a\u4e00\u4e2a\uff08\u5206\u53f7 <\/span>;<\/code><\/span>\uff09\uff0c\u6765\u8868\u793a\u8bed\u53e5\u7684\u7ed3\u675f\u3002<\/span><\/p>\n<\/li>\n
                                                                  • \n
                                                                    \u5355\u884c\u6ce8\u91ca<\/span><\/strong><\/span>\uff1a\u5728\u6ce8\u91ca\u5185\u5bb9\u524d\u52a0\uff08\u53cc\u659c\u6760\u7b26\u53f7 <\/span>\/\/<\/code><\/span>\uff09.<\/span><\/p>\n<\/li>\n
                                                                  • \n
                                                                    \u591a\u884c\u6ce8\u91ca<\/span><\/strong><\/span>\uff1a\u4ee5 “\/<\/span>*” \u5f00\u59cb\uff0c\u4ee5 “<\/span>*\/” \u7ed3\u675f\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                    4.3 \u7f16\u7a0b\u8303\u5f0f<\/span><\/h3>\n
                                                                      \n
                                                                    • \n
                                                                      \u9762\u5411\u5bf9\u8c61<\/span><\/strong><\/span>\uff1aJavaScript \u652f\u6301\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\uff0c\u901a\u8fc7\u6784\u9020\u51fd\u6570\u3001\u539f\u578b\u7b49\u65b9\u5f0f\u521b\u5efa\u5bf9\u8c61\uff0c\u5b9e\u73b0\u7ee7\u627f\u3001\u5c01\u88c5\u7b49\u9762\u5411\u5bf9\u8c61\u7684\u7279\u6027\u3002<\/span><\/p>\n<\/li>\n
                                                                    • \n
                                                                      \u51fd\u6570\u5f0f\u7f16\u7a0b<\/span><\/strong><\/span>\uff1aJavaScript \u4e5f\u652f\u6301\u51fd\u6570\u5f0f\u7f16\u7a0b\uff0c\u5982\u9ad8\u9636\u51fd\u6570\u3001\u7eaf\u51fd\u6570\u7b49\u6982\u5ff5\u5728 JavaScript \u4e2d\u53ef\u4ee5\u5f97\u5230\u5e94\u7528\uff0c\u53ef\u4ee5\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u65b9\u5f0f\u5904\u7406\u6570\u636e\u3001\u5b9e\u73b0\u903b\u8f91\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                      4.4 \u53d8\u91cf\u4f5c\u7528\u57df\u4e0e\u95ed\u5305<\/span><\/h3>\n
                                                                       JavaScript \u7684\u53d8\u91cf\u867d\u7136\u53ef\u4ee5\u4e0d\u58f0\u660e\uff0c\u76f4\u63a5\u4f7f\u7528\u3002\u4f46\u8fd9\u6837\u7f16\u7a0b<\/span>\u4e0d\u89c4\u8303<\/span><\/strong><\/span>\uff0c\u5efa\u8bae\u5148\u58f0\u660e\uff0c\u540e\u4f7f\u7528\u3002<\/span><\/p>\n
                                                                        \n
                                                                      • \n
                                                                        \u4f7f\u7528 <\/span>var<\/code><\/span>\uff08\u51fd\u6570\u4f5c\u7528\u57df\uff09\uff0c\u58f0\u660e\u53d8\u91cf\u3002\u4f7f\u7528<\/span>=<\/code><\/span>\u7b49\u4e8e\u53f7\u7ed9\u53d8\u91cf\u8d4b\u503c\uff08\u5b58\u50a8\u5185\u5bb9\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                        \/\/ \u4f7f\u7528var\uff08\u51fd\u6570\u4f5c\u7528\u57df\uff09<\/span><\/span>\r\n\/\/ \u53d8\u91cf\u58f0\u660e\uff1avar \u53d8\u91cf\u540d1[,\u53d8\u91cf\u540d2];<\/span><\/span>\r\n\/\/ \u53d8\u91cf\u8d4b\u503c\uff1a\u53d8\u91cf\u540d = \u53d8\u91cf\u503c;<\/span><\/span>\r\nvar<\/span> my_var<\/span> =<\/span> 10<\/span>; \/\/\u58f0\u660e\u53d8\u91cfmy_var\uff0c\u5e76\u8d4b\u503c\uff1d10\uff08\u6570\u503c\u7c7b\u578b\uff09<\/span><\/span>\r\nmy_var<\/span> =<\/span> \"ABC\"<\/span>; \/\/\u53d8\u91cfmy_var\uff0c\u91cd\u65b0\u8d4b\u503c\uff1d\"ABC\"\uff08\u5b57\u7b26\u4e32\u7c7b\u578b\uff09<\/span><\/span>\r\nmy_var<\/span> =<\/span> true<\/span>; \/\/\u53d8\u91cfmy_var\uff0c\u91cd\u65b0\u8d4b\u503c\uff1dtrue\uff08\u5e03\u5c14\u7c7b\u578b\uff09<\/span><\/span><\/pre>\n
                                                                          \n
                                                                        • \n
                                                                          \u4f7f\u7528<\/span>let<\/code><\/span>\/<\/span>const<\/code><\/span>\uff08\u5757\u7ea7\u4f5c\u7528\u57df\uff09\uff0c\u58f0\u660e\u53d8\u91cf\u548c\u5e38\u91cf\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                          \/\/ \u4f7f\u7528let\uff08\u5757\u7ea7\u4f5c\u7528\u57df\uff09<\/span><\/span>\r\nlet<\/span> y<\/span> =<\/span> 20<\/span>;<\/span>\r\n\u200b<\/span>\r\n\/\/ \u4f7f\u7528const\uff08\u5e38\u91cf\uff0c\u5757\u7ea7\u4f5c\u7528\u57df\uff09<\/span><\/span>\r\nconst<\/span> PI<\/span> =<\/span> 3.14<\/span>;<\/span><\/pre>\n
                                                                            \n
                                                                          • \n
                                                                            \u95ed\u5305\uff1a\u51fd\u6570\u4fdd\u7559\u5176\u8bcd\u6cd5\u4f5c\u7528\u57df\uff08\u5982\u8ba1\u6570\u5668\u5b9e\u73b0\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                            4.5 \u6570\u636e\u7c7b\u578b<\/span><\/h3>\n
                                                                              \n
                                                                            • \n
                                                                              \u539f\u59cb\u57fa\u672c\u7c7b\u578b<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n
                                                                              Number<\/code><\/span>\uff08\u542b <\/span>BigInt<\/code><\/span>\uff09\u3001<\/span>String<\/code><\/span>\u3001<\/span>Boolean<\/code><\/span>\u3001<\/span>Null<\/code><\/span>\u3001<\/span>Undefined<\/code><\/span>\u3001<\/span>Symbol<\/code><\/span>\uff08ES6 \u65b0\u589e\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                            • \n
                                                                              \u5bf9\u8c61\u5f15\u7528\u7c7b\u578b<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n
                                                                              Object<\/code><\/span>\u3001<\/span>Array<\/code><\/span>\u3001<\/span>Function<\/code><\/span>\uff08\u5305\u62ec<\/span>Array<\/code><\/span> \u6570\u7ec4\u3001<\/span>Date<\/code><\/span> \u65e5\u671f\u3001<\/span>RegExp<\/code><\/span>\u3001\u51fd\u6570\u7b49\uff09\u3002<\/span><\/p>\n
                                                                              \n\n\n\n\n\n\n\n
                                                                              \u7c7b\u578b<\/span><\/strong><\/span><\/span><\/th>\n\u793a\u4f8b<\/span><\/strong><\/span><\/span><\/th>\n\u63cf\u8ff0<\/span><\/strong><\/span><\/span><\/th>\n<\/tr>\n<\/thead>\n
                                                                              \u539f\u59cb\u7c7b\u578b<\/span><\/strong><\/span><\/span><\/td>\nlet str = \"hello\";<\/code><\/span><\/span><\/td>\n\u6309\u503c\u8bbf\u95ee\uff0c\u4e0d\u53ef\u53d8<\/span><\/span><\/td>\n<\/tr>\n
                                                                              \u5f15\u7528\u7c7b\u578b<\/span><\/strong><\/span><\/span><\/td>\nlet obj = {a: 1};<\/code><\/span><\/span><\/td>\n\u6309\u5f15\u7528\u8bbf\u95ee\uff0c\u5c5e\u6027\u53ef\u53d8<\/span><\/span><\/td>\n<\/tr>\n
                                                                              \u7279\u6b8a\u503c<\/span><\/strong><\/span><\/span><\/td>\nnull<\/code><\/span>, <\/span>undefined<\/code><\/span><\/span><\/td>\n\u7a7a\u503c\u6216\u672a\u5b9a\u4e49<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/li>\n
                                                                            • \n
                                                                              Array<\/code><\/span> \u4e00\u7ef4<\/span>\u6570\u7ec4<\/span><\/strong><\/span>\u7c7b\u578b\uff1a<\/span><\/p>\n
                                                                              \u6570\u7ec4\u662f\u4e00\u4e2a\u503c\u7684<\/span>\u96c6\u5408<\/span><\/strong><\/span>\uff0c\u6bcf\u4e2a\u503c\u90fd\u6709\u4e00\u4e2a<\/span>\u7d22\u5f15\u53f7<\/span><\/strong><\/span>\uff0c\u4ece <\/span>0<\/span><\/strong><\/span> \u5f00\u59cb\uff0c\u6bcf\u4e2a\u7d22\u5f15\u90fd\u6709\u4e00\u4e2a\u76f8\u5e94\u7684\u503c\uff0c\u6839\u636e\u9700\u8981\u6dfb\u52a0\u66f4\u591a\u6570\u503c\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                              \/\/ \u521b\u5efa\u6570\u7ec4\u8bed\u6cd5<\/span><\/span>\r\nvar<\/span> my_arr<\/span> =<\/span> new<\/span> Array<\/span>(); \/\/ \u521b\u5efa\u6570\u7ec4<\/span><\/span>\r\n\/\/ \u65b0\u521b\u5efa\u7684\u6570\u7ec4\uff0c\u9ed8\u8ba4\u662f\u7a7a\u6570\u7ec4\uff0c\u6ca1\u6709\u503c\uff0c\u5982\u679c\u8f93\u51fa\u5219\u663e\u793a undefined<\/span><\/span>\r\n\/\/ \u6570\u7ec4\u5b58\u50a8\u7684\u6570\u636e\u53ef\u4ee5\u662f\u4efb\u4f55\u7c7b\u578b\uff08\u6570\u5b57\u3001\u5b57\u7b26\u3001\u5e03\u5c14\u503c\u7b49\uff09<\/span><\/span>\r\n\u200b<\/span>\r\n\/\/ \u521b\u5efa\u6570\u7ec4\u7684\u540c\u65f6\uff0c\u8fd8\u53ef\u4ee5\u4e3a\u6570\u7ec4\u6307\u5b9a\u957f\u5ea6\uff0c\u957f\u5ea6\u53ef\u4efb\u610f\u6307\u5b9a\u3002<\/span><\/span>\r\nvar<\/span> my_arr<\/span> =<\/span> new<\/span> Array<\/span>(10<\/span>); \/\/ \u521b\u5efa\u6570\u7ec4\uff0c\u5b58\u50a810\u4e2a\u6570\u636e<\/span><\/span>\r\nmy_arr<\/span>[0<\/span>] =<\/span> \"\u7d22\u5f150\uff0c\u7b2c1\u4e2a\u6570\u503c\"<\/span>; \/\/ \u7ed9\u6570\u7ec4\u8d4b\u503c\u4e3a\u5b57\u7b26\u4e32<\/span><\/span>\r\nmy_arr<\/span>[9<\/span>] =<\/span> \"\u7d22\u5f159\uff0c\u7b2c10\u4e2a\u6570\u503c\"<\/span>; \/\/ \u7ed9\u6570\u7ec4\u8d4b\u503c\u4e3a\u5b57\u7b26\u4e32<\/span><\/span>\r\n\u200b<\/span>\r\n\/\/ \u521b\u5efa\u6570\u7ec4\u7684\u540c\u65f6\uff0c\u8d4b\u503c<\/span><\/span>\r\nvar<\/span> my_array<\/span> =<\/span> new<\/span> Array<\/span>(12<\/span>,34<\/span>,56<\/span>,78<\/span>,90<\/span>); \/\/ \u521b\u5efa\u6570\u7ec4\u540c\u65f6\u8d4b\u503c<\/span><\/span>\r\nvar<\/span> my_array<\/span> =<\/span> [90<\/span>,78<\/span>,56<\/span>,34<\/span>,12<\/span>]; \/\/ \u76f4\u63a5\u8f93\u5165\u4e00\u4e2a\u6570\u7ec4\uff08\u5b57\u9762\u91cf\u6570\u7ec4\uff09<\/span><\/span>\r\n\u200b<\/span>\r\n\/\/ \u65b0\u589e\u5143\u7d20\u8bed\u6cd5<\/span><\/span>\r\n\/\/ \u4f7f\u7528\u4e0b\u4e00\u4e2a\u672a\u7528\u7684\u7d22\u5f15\uff0c\u4efb\u4f55\u65f6\u523b\u53ef\u4ee5\u4e0d\u65ad\u5411\u6570\u7ec4\u589e\u52a0\u65b0\u5143\u7d20<\/span><\/span>\r\nmy_array<\/span>[5<\/span>] =<\/span> 100<\/span>;<\/span>\r\n\u200b<\/span>\r\n\/\/ \u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u7684\u503c\uff0c\u53ea\u9700\u5f15\u7528\u6570\u7ec4\u53d8\u91cf\u7684\u7d22\u5f15<\/span><\/span>\r\nvar<\/span> my_var1<\/span> =<\/span> my_array<\/span>[4<\/span>];<\/span>\r\n\u200b<\/span>\r\n\/\/ \u83b7\u53d6\u6570\u7ec4\u7684\u5927\u5c0f\uff0c\u53ea\u9700\u5f15\u7528\u6570\u7ec4\u7684 length \u5c5e\u6027<\/span><\/span>\r\nvar<\/span> my_var2<\/span> =<\/span> my_array<\/span>.length<\/span>;<\/span><\/pre>\n
                                                                                \n
                                                                              • \n
                                                                                Array<\/code><\/span> \u4e8c\u7ef4<\/span>\u6570\u7ec4<\/span><\/strong><\/span>\u7c7b\u578b\uff1a<\/span><\/p>\n
                                                                                \u4e00\u7ef4\u6570\u7ec4 <\/span>myarray[ ]<\/code><\/span>\uff0c\u53ef\u4ee5\u770b\u6210\u4e00\u7ec4<\/span>\u5c0f\u76d2\u5b50<\/span><\/strong><\/span>\uff0c\u6bcf\u4e2a\u5c0f\u76d2\u5b50\u53ea\u80fd\u653e\u4e00\u4e2a\u5185\u5bb9\u3002<\/span><\/p>\n
                                                                                \u4e8c\u7ef4\u6570\u7ec4 <\/span>myarray[ ][ ]<\/code><\/span>\uff0c\u53ef\u4ee5\u770b\u6210\u4e00\u7ec4<\/span>\u5927\u76d2\u5b50<\/span><\/strong><\/span>\uff0c\u6bcf\u4e2a\u5927\u76d2\u5b50\u91cc\u9762\u5b58\u653e\u591a\u4e2a\u5c0f\u76d2\u5b50\uff0c\u6bcf\u4e2a\u5c0f\u76d2\u5b50\u53ea\u80fd\u653e\u4e00\u4e2a\u5185\u5bb9\u3002<\/span><\/p>\n
                                                                                \u4e8c\u7ef4\u6570\u7ec4\u7684\u4e24\u4e2a\u7ef4\u5ea6\u7684<\/span>\u7d22\u5f15\u503c<\/span><\/strong><\/span>\u4e5f\u662f\u4ece <\/span>0<\/span><\/strong><\/span> \u5f00\u59cb\uff0c\u4e24\u4e2a\u7ef4\u5ea6\u7684\u6700\u540e\u4e00\u4e2a\u7d22\u5f15\u503c\u4e3a\u957f\u5ea6 <\/span>-1<\/span><\/strong><\/span>\u3002 <\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                \/\/ \u7b2c1\u79cd\u521b\u5efa\uff08\u4e8c\u7ef4\uff09\u6570\u7ec4\u8bed\u6cd5<\/span><\/span>\r\n\/\/ \u5148\u521b\u5efa\u58f0\u660e\uff08\u4e00\u7ef4\uff09\u6570\u7ec4\uff0c\u518d\u4f7f\u7528\uff08\u5faa\u73af\uff09\u8bed\u53e5\uff0c\u7ed9\u539f\uff08\u4e00\u7ef4\uff09\u6570\u7ec4\u7684\u5143\u7d20\u58f0\u660e\u4e3a\u6570\u7ec4\u7c7b\u578b\u3002<\/span><\/span>\r\n\u200b<\/span>\r\n\/\/ \u7b2c2\u79cd\u521b\u5efa\uff08\u4e8c\u7ef4\uff09\u6570\u7ec4\u8bed\u6cd5<\/span><\/span>\r\nvar<\/span> my_arr2<\/span> =<\/span> [ [1<\/span>,2<\/span>,3<\/span>],[4<\/span>,5<\/span>,6<\/span>] ];<\/span>\r\n\/\/ my_arr2[0][2]\u7684\u503c\u4e3a3\uff0cmy_arr2[1][0]\u7684\u503c\u4e3a4<\/span><\/span><\/pre>\n
                                                                                4.6 \u6d41\u7a0b\u63a7\u5236\u8bed\u53e5<\/span><\/h3>\n
                                                                                  \n
                                                                                • \n
                                                                                  \uff08<\/span>if<\/code><\/span>\uff09\u6761\u4ef6\u5224\u65ad\u8bed\u53e5<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                  \/\/ if \u5355\u503c\u5224\u65ad<\/span><\/span>\r\nif<\/span> (condition<\/span>) {<\/span>\r\n \u00a0\/\/ \u6761\u4ef6\u6210\u7acb\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757<\/span><\/span>\r\n}<\/span>\r\n\u200b<\/span>\r\n\/\/ if - else \u4e8c\u9009\u4e00\u5224\u65ad<\/span><\/span>\r\nif<\/span> (condition<\/span>) {<\/span>\r\n \u00a0\/\/ \u6761\u4ef6\u6210\u7acb\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757<\/span><\/span>\r\n} else<\/span> {<\/span>\r\n \u00a0\/\/ \u6761\u4ef6\u4e0d\u6210\u7acb\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757<\/span><\/span>\r\n}<\/span>\r\n\u200b<\/span>\r\n\/\/ if - else if - else \u591a\u9009\u4e00\u5224\u65ad<\/span><\/span>\r\nif<\/span> (condition_1<\/span>) {<\/span>\r\n \u00a0\/\/ \u6761\u4ef61\u6210\u7acb\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757<\/span><\/span>\r\n} else<\/span> if<\/span> (condition_2<\/span>) {<\/span>\r\n \u00a0\/\/ \u6761\u4ef62\u6210\u7acb\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757<\/span><\/span>\r\n} else<\/span> if<\/span> (condition_n<\/span>) {<\/span>\r\n \u00a0\/\/ \u6761\u4ef6n\u6210\u7acb\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757<\/span><\/span>\r\n} else<\/span> {<\/span>\r\n \u00a0\/\/ \u6240\u6709\u6761\u4ef6\u90fd\u4e0d\u6210\u7acb\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757<\/span><\/span>\r\n}<\/span><\/pre>\n
                                                                                    \n
                                                                                  • \n
                                                                                    \uff08<\/span>switch<\/code><\/span>\uff09\u6761\u4ef6\u5224\u65ad\u8bed\u53e5<\/span><\/p>\n
                                                                                    \u5f53\u6709\u5f88\u591a\u79cd\u9009\u9879\u7684\u65f6\u5019\uff0c<\/span>switch<\/code><\/span> \u6bd4 <\/span>if<\/code><\/span> \u4f7f\u7528\u66f4\u65b9\u4fbf\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                    \/\/ switch \u591a\u79cd\u9009\u9879\u5224\u65ad\uff0c<\/span><\/span>\r\nswitch<\/span> (expression<\/span>) {   \/\/ \u8868\u8fbe\u5f0f<\/span><\/span>\r\ncase<\/span> value_1<\/span>: \/\/ \u6ee1\u8db3\u8868\u8fbe\u5f0f\u7684\u503c\uff0c\u5c31\u4f1a\u6267\u884c\u8be5 case \u540e\u7684\u6240\u6709\u4ee3\u7801\u5757<\/span><\/span>\r\n    \/\/ \u4ee3\u7801\u57571;<\/span><\/span>\r\n    break<\/span>; \/\/ \u53ef\u4f7f\u7528 break \u8bed\u53e5\u6765\u963b\u6b62\u8fd0\u884c\u4e0b\u4e00\u4e2a case \u4e2d\u7684\u4ee3\u7801\u5757<\/span><\/span>\r\ncase<\/span> value_2<\/span>:<\/span>\r\n    \/\/ \u4ee3\u7801\u57572;<\/span><\/span>\r\n    break<\/span>;<\/span>\r\ncase<\/span> value_n<\/span>:<\/span>\r\n    \/\/ \u4ee3\u7801\u5757n;<\/span><\/span>\r\n    break<\/span>;<\/span>\r\ndefault<\/span>:<\/span>\r\n    \/\/ \u8868\u8fbe\u5f0f\u6ca1\u6709\u7b26\u5408\u7684 case \u503c\uff0c\u6267\u884c\u6b64\u9ed8\u8ba4\u4ee3\u7801\u5757<\/span><\/span>\r\n}<\/span><\/pre>\n
                                                                                      \n
                                                                                    • \n
                                                                                      \uff08<\/span>for<\/code><\/span>\uff09\u5faa\u73af\u8bed\u53e5<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                      \/\/ for \u5faa\u73af<\/span><\/span>\r\nfor<\/span>(\u521d\u59cb\u5316\u53d8\u91cf<\/span>;\u5faa\u73af\u6761\u4ef6<\/span>;\u5faa\u73af\u8fed\u4ee3<\/span>)<\/span>\r\n{ \u00a0 \u00a0 <\/span>\r\n    \u5faa\u73af\u8bed\u53e5\u4ee3\u7801\u5757<\/span>; <\/span>\r\n}<\/span>\r\n\u200b<\/span>\r\nfor<\/span> (let<\/span> i<\/span> =<\/span> 0<\/span>; i<\/span> <<\/span> 5<\/span>; i<\/span>++<\/span>) {<\/span>\r\n \u00a0console<\/span>.log<\/span>(i<\/span>);<\/span>\r\n}<\/span><\/pre>\n
                                                                                        \n
                                                                                      • \n
                                                                                        \uff08<\/span>while<\/code><\/span>\uff09\u5faa\u73af\u8bed\u53e5<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                        \/\/ while \u5faa\u73af<\/span><\/span>\r\nwhile<\/span>(\u5224\u65ad\u6761\u4ef6<\/span>)<\/span>\r\n{<\/span>\r\n    \u5faa\u73af\u8bed\u53e5\u4ee3\u7801\u5757<\/span>; <\/span>\r\n}<\/span><\/pre>\n
                                                                                          \n
                                                                                        • \n
                                                                                          \uff08<\/span>do ... while<\/code><\/span>\uff09\u5faa\u73af\u8bed\u53e5<\/span><\/p>\n
                                                                                          do ... while<\/code><\/span> \u5faa\u73af\u548c <\/span>while<\/code><\/span> \u5faa\u73af\u7684<\/span>\u552f\u4e00\u5dee\u522b<\/span><\/strong><\/span>\u662f\uff0c<\/span>do ... while<\/code><\/span> \u5faa\u73af\u4fdd\u8bc1\u5faa\u73af\u4f53\u5185\u7684\u4ee3\u7801\u5757\u81f3\u5c11<\/span>\u88ab\u6267\u884c\u4e00\u6b21<\/span><\/strong><\/span>\u3002\u56e0\u4e3a\u5b83\u662f\u5148\u6267\u884c\u4ee3\u7801\uff0c\u540e\u5224\u65ad\u6761\u4ef6\uff0c\u5982\u679c\u6761\u4ef6\u4e3a\u771f\uff0c\u7ee7\u7eed\u5faa\u73af\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                          \/\/ do ... while \u5faa\u73af<\/span><\/span>\r\ndo<\/span><\/span>\r\n{<\/span>\r\n \u00a0 \u00a0\u5faa\u73af\u8bed\u53e5\u4ee3\u7801\u5757<\/span>; <\/span>\r\n}<\/span>\r\nwhile<\/span>(\u5224\u65ad\u6761\u4ef6<\/span>)<\/span><\/pre>\n
                                                                                            \n
                                                                                          • \n
                                                                                            \uff08<\/span>break<\/code><\/span>\uff09\u9000\u51fa\u5faa\u73af\u4f53\u8bed\u53e5<\/span><\/p>\n
                                                                                            \u5728 <\/span>for<\/code><\/span>\u3001<\/span>while<\/code><\/span>\u3001<\/span>do ... while<\/code><\/span> \u7b49\u5faa\u73af\u4e2d\uff0c\u4f7f\u7528 <\/span>break<\/code><\/span> \u8bed\u53e5\u9000\u51fa\u5f53\u524d\u5faa\u73af\u4f53\uff0c\u76f4\u63a5\u6267\u884c\u540e\u9762\u7684\u4ee3\u7801\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                            \/\/ break \u9000\u51fa\u5faa\u73af\u4f53<\/span><\/span>\r\nbreak<\/span>; \/\/ \u9000\u51fa\u5f53\u524d\u5faa\u73af\u4f53\uff0c\u76f4\u63a5\u6267\u884c\uff08\u5faa\u73af\u8bed\u53e5\uff09\u540e\u9762\u7684\u4ee3\u7801\u3002<\/span><\/span><\/pre>\n
                                                                                              \n
                                                                                            • \n
                                                                                              \uff08<\/span>continue<\/code><\/span>\uff09\u9000\u51fa\u672c\u6b21\u5faa\u73af\u8bed\u53e5<\/span><\/p>\n
                                                                                              \u5728 <\/span>for<\/code><\/span>\u3001<\/span>while<\/code><\/span>\u3001<\/span>do ... while<\/code><\/span> \u7b49\u5faa\u73af\u4e2d\uff0c\u4f7f\u7528 <\/span>continue<\/code><\/span> \u8bed\u53e5\u9000\u51fa\u672c\u6b21\u5faa\u73af\uff0c\u76f4\u63a5\u8fdb\u884c\u540e\u7eed\u5faa\u73af\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                              \/\/ continue \u9000\u51fa\u672c\u6b21\u5faa\u73af<\/span><\/span>\r\ncontinue<\/span>; \/\/ \u9000\u51fa\u672c\u6b21\u5faa\u73af\uff0c\u76f4\u63a5\u8fdb\u884c\u540e\u7eed\u5faa\u73af\u3002<\/span><\/span><\/pre>\n
                                                                                              4.7 \u51fd\u6570<\/span><\/h3>\n
                                                                                               JavaScript \u4e2d\u7684\u51fd\u6570\u662f\u4e00\u7b49\u516c\u6c11\uff0c\u652f\u6301\u51fd\u6570\u8868\u8fbe\u5f0f\u3001\u51fd\u6570\u5d4c\u5957\u3001\u7bad\u5934\u51fd\u6570\uff08<\/span>=><\/code><\/span>\uff09\u548c\u95ed\u5305\u7b49\u9ad8\u7ea7\u7279\u6027\uff0c\u51fd\u6570\u65e2\u53ef\u4ee5\u4f5c\u4e3a\u5bf9\u8c61\u7684\u65b9\u6cd5\uff0c\u4e5f\u53ef\u4ee5\u4f5c\u4e3a\u72ec\u7acb\u7684\u51fd\u6570\u4f7f\u7528\u3002<\/span><\/p>\n
                                                                                                \n
                                                                                              • \n
                                                                                                \u5b9a\u4e49\uff1a\u58f0\u660e\u5f0f\u3001\u8868\u8fbe\u5f0f\u3001\u7bad\u5934\u51fd\u6570\uff08<\/span>() => {}<\/code><\/span>\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                              • \n
                                                                                                \u53c2\u6570\uff1a\u652f\u6301\u9ed8\u8ba4\u503c\u3001\u5269\u4f59\u53c2\u6570\uff08<\/span>...args<\/code><\/span>\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                \/\/ \u51fd\u6570\u5b9a\u4e49<\/span><\/span>\r\n\/\/ \u51fd\u6570\u4e2d\u53c2\u6570\u548c\u8fd4\u56de\u503c\u4e0d\u53ea\u662f\u6570\u5b57\uff0c\u8fd8\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u7b49\u5176\u5b83\u7c7b\u578b\u3002 <\/span><\/span>\r\n\/*<\/span><\/span>\r\nfunction \u51fd\u6570\u540d([\u53c2\u65701],[\u53c2\u65702],[\u53c2\u6570n])<\/span><\/span>\r\n{<\/span><\/span>\r\n    \u51fd\u6570\u4f53\u4ee3\u7801;<\/span><\/span>\r\n    return \u8fd4\u56de\u503c; \/\/\u8fd4\u56de\u51fd\u6570\u503c\uff0creturn \u540e\u9762\u7684\u503c\u53eb\u505a\u8fd4\u56de\u503c\u3002<\/span><\/span>\r\n}<\/span><\/span>\r\n*\/<\/span><\/span>\r\n\u200b<\/span>\r\nfunction<\/span> add<\/span>(a<\/span>, b<\/span>) {<\/span>\r\n \u00a0var<\/span> sum<\/span> =<\/span> a<\/span> +<\/span> b<\/span>;<\/span>\r\n \u00a0return<\/span> sum<\/span>;<\/span>\r\n}<\/span>\r\n\u200b<\/span>\r\n\/\/ \u53ef\u4ee5\u901a\u8fc7\u53d8\u91cf\u5b58\u50a8\u8c03\u7528\u51fd\u6570\u7684\u8fd4\u56de\u503c\uff0c\u4ee3\u7801\u5982\u4e0b:<\/span><\/span>\r\nresult<\/span> =<\/span> add<\/span>(7<\/span>,4<\/span>); \/\/ \u8bed\u53e5\u6267\u884c\u540e\uff0cresult \u53d8\u91cf\u4e2d\u7684\u503c\u4e3a11\u3002<\/span><\/span>\r\n\u200b<\/span>\r\n\/\/ \u7bad\u5934\u51fd\u6570\uff08ES6\uff09<\/span><\/span>\r\nconst<\/span> multiply<\/span> =<\/span> (a<\/span>, b<\/span>) =><\/span> a<\/span> *<\/span> b<\/span>;<\/span>\r\n\u200b<\/span>\r\n\/\/ \u7acb\u5373\u6267\u884c\u51fd\u6570\u8868\u8fbe\u5f0f\uff08IIFE\uff09<\/span><\/span>\r\n(function<\/span>() {<\/span>\r\n \u00a0console<\/span>.log<\/span>('\u7acb\u5373\u6267\u884c'<\/span>);<\/span>\r\n})();<\/span><\/pre>\n
                                                                                                  \n
                                                                                                • \n
                                                                                                  \u51fd\u6570\u8c03\u7528<\/span><\/strong><\/span>1\uff1a\u5728 <\/span><script> <\/script><\/code><\/span> \u6807\u7b7e\u5185\u8c03\u7528\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                  <<\/span>script<\/span> type<\/span>=\"text\/javascript\"<\/span>><\/span><\/span>\r\n \u00a0 \u00a0function<\/span> add<\/span>()<\/span>\r\n \u00a0  {<\/span>\r\n \u00a0 \u00a0 \u00a0 \u00a0 sum<\/span> =<\/span> 1<\/span> +<\/span> 2<\/span>;<\/span>\r\n \u00a0 \u00a0 \u00a0 \u00a0 alert<\/span>(sum<\/span>);<\/span>\r\n \u00a0  }<\/span>\r\n \u00a0add<\/span>();\/\/\u8c03\u7528\u51fd\u6570\uff0c\u76f4\u63a5\u5199\u51fd\u6570\u540d\u3002<\/span><\/span>\r\n<\/<\/span>script<\/span>><\/span><\/span><\/pre>\n
                                                                                                    \n
                                                                                                  • \n
                                                                                                    \u51fd\u6570\u8c03\u7528<\/span><\/strong><\/span>2\uff1a\u5728 HTML \u6587\u4ef6\u4e2d\u8c03\u7528\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                    <!-- \u4f8b\u5982\u901a\u8fc7\u70b9\u51fb\u6309\u94ae\u540e\u8c03\u7528\u5b9a\u4e49\u597d\u7684\u51fd\u6570\u3002 --><\/span><\/span>\r\n<<\/span>input<\/span> type<\/span>=\"button\"<\/span> value<\/span>=\"click it\"<\/span> onclick<\/span>=\"add()\"<\/span>><\/span> <\/span><\/pre>\n
                                                                                                    4.8 \u5f02\u6b65\u7f16\u7a0b<\/span><\/h3>\n
                                                                                                      \n
                                                                                                    • \n
                                                                                                      \u56de\u8c03\u51fd\u6570 \u2192 <\/span>Promise<\/code><\/span>\u2192 <\/span>async\/await<\/code><\/span>\uff08\u73b0\u4ee3\u63a8\u8350\u65b9\u5f0f\uff0c\u89e3\u51b3\u56de\u8c03\u5730\u72f1\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                      \/\/ Promise<\/span><\/span>\r\nfetch<\/span>('https:\/\/api.example.com\/data'<\/span>)<\/span>\r\n  .then<\/span>(response<\/span> =><\/span> response<\/span>.json<\/span>())<\/span>\r\n  .then<\/span>(data<\/span> =><\/span> console<\/span>.log<\/span>(data<\/span>))<\/span>\r\n  .catch<\/span>(error<\/span> =><\/span> console<\/span>.error<\/span>(error<\/span>));<\/span>\r\n\u200b<\/span>\r\n\/\/ async\/await\uff08ES8\uff09<\/span><\/span>\r\nasync<\/span> function<\/span> fetchData<\/span>() {<\/span>\r\n \u00a0try<\/span> {<\/span>\r\n \u00a0 \u00a0const<\/span> response<\/span> =<\/span> await<\/span> fetch<\/span>('https:\/\/api.example.com\/data'<\/span>);<\/span>\r\n \u00a0 \u00a0const<\/span> data<\/span> =<\/span> await<\/span> response<\/span>.json<\/span>();<\/span>\r\n \u00a0 \u00a0console<\/span>.log<\/span>(data<\/span>);<\/span>\r\n  } catch<\/span> (error<\/span>) {<\/span>\r\n \u00a0 \u00a0console<\/span>.error<\/span>(error<\/span>);<\/span>\r\n  }<\/span>\r\n}<\/span><\/pre>\n
                                                                                                      4.9 ES6+ \u65b0\u7279\u6027<\/span><\/h3>\n
                                                                                                        \n
                                                                                                      • \n
                                                                                                        \u6a21\u5757\u5316\uff08<\/span>import\/export<\/code><\/span>\uff09\u3001\u89e3\u6784\u8d4b\u503c\u3001\u6a21\u677f\u5b57\u7b26\u4e32\u3001\u9ed8\u8ba4\u53c2\u6570\u3001\u5c55\u5f00\u8fd0\u7b97\u7b26\uff08<\/span>...<\/code><\/span>\uff09\u7b49\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                        4.10 \u4ee3\u7801\u793a\u4f8b<\/span><\/h3>\n
                                                                                                          \n
                                                                                                        • \n
                                                                                                          \u524d\u7aef\u793a\u4f8b\uff08<\/span>DOM \u64cd\u4f5c<\/span><\/strong><\/span>\uff09<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                          <!DOCTYPE html><\/span><\/span>\r\n<<\/span>html<\/span>><\/span><\/span>\r\n<<\/span>body<\/span>><\/span><\/span>\r\n \u00a0<<\/span>button<\/span> id<\/span>=\"myButton\"<\/span>><\/span>\u70b9\u51fb\u6211<\/<\/span>button<\/span>><\/span><\/span>\r\n \u00a0<<\/span>p<\/span> id<\/span>=\"text\"<\/span>><\/<\/span>p<\/span>><\/span><\/span>\r\n \u00a0<<\/span>script<\/span>><\/span><\/span>\r\n \u00a0 \u00a0document<\/span>.getElementById<\/span>(\"myButton\"<\/span>).addEventListener<\/span>(\"click\"<\/span>, () =><\/span> {<\/span>\r\n \u00a0 \u00a0 \u00a0document<\/span>.getElementById<\/span>(\"text\"<\/span>).innerHTML<\/span> =<\/span> \"Hello, JavaScript!\"<\/span>;<\/span>\r\n \u00a0  });<\/span>\r\n \u00a0<\/<\/span>script<\/span>><\/span><\/span>\r\n<\/<\/span>body<\/span>><\/span><\/span>\r\n<\/<\/span>html<\/span>><\/span><\/span><\/pre>\n
                                                                                                            \n
                                                                                                          • \n
                                                                                                            \u540e\u7aef\u793a\u4f8b\uff08<\/span>Node.js<\/span><\/strong><\/span>\uff09<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                            const<\/span> express<\/span> =<\/span> require<\/span>(\"express\"<\/span>);<\/span>\r\nconst<\/span> app<\/span> =<\/span> express<\/span>();<\/span>\r\n\u200b<\/span>\r\napp<\/span>.get<\/span>(\"\/\"<\/span>, (req<\/span>, res<\/span>) =><\/span> {<\/span>\r\n \u00a0res<\/span>.send<\/span>(\"Hello from Node.js!\"<\/span>);<\/span>\r\n});<\/span>\r\n\u200b<\/span>\r\napp<\/span>.listen<\/span>(3000<\/span>, () =><\/span> {<\/span>\r\n \u00a0console<\/span>.log<\/span>(\"Server running on http:\/\/localhost:3000\"<\/span>);<\/span>\r\n});<\/span><\/pre>\n
                                                                                                              \n
                                                                                                            • \n
                                                                                                              \u5f02\u6b65\u5904\u7406\uff08<\/span>Async\/Await<\/span><\/strong><\/span>\uff09<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                              \/\/ \u5f02\u6b65\u5904\u7406\uff08Async\/Await\uff09<\/span><\/span>\r\nasync<\/span> function<\/span> fetchData<\/span>() {<\/span>\r\n \u00a0try<\/span> {<\/span>\r\n \u00a0 \u00a0const<\/span> response<\/span> =<\/span> await<\/span> fetch<\/span>('https:\/\/api.example.com\/data'<\/span>);<\/span>\r\n \u00a0 \u00a0const<\/span> data<\/span> =<\/span> await<\/span> response<\/span>.json<\/span>();<\/span>\r\n \u00a0 \u00a0return<\/span> data<\/span>?<\/span>.results<\/span>?<\/span>.map<\/span>(item<\/span> =><\/span> ({ ...<\/span>item<\/span>, active<\/span>: true<\/span> }));<\/span>\r\n  } catch<\/span> (error<\/span>) {<\/span>\r\n \u00a0 \u00a0console<\/span>.error<\/span>(\"Fetch failed:\"<\/span>, error<\/span>);<\/span>\r\n \u00a0 \u00a0return<\/span> [];<\/span>\r\n  }<\/span>\r\n}<\/span><\/pre>\n
                                                                                                                \n
                                                                                                              • \n
                                                                                                                \u7c7b\u4e0e\u6a21\u5757\u5316<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                \/\/ \u7c7b\u4e0e\u6a21\u5757\u5316<\/span><\/span>\r\nexport<\/span> class<\/span> User<\/span> {<\/span>\r\n \u00a0#password;  \/\/ \u79c1\u6709\u5b57\u6bb5<\/span><\/span>\r\n\u200b<\/span>\r\n \u00a0constructor<\/span>(name<\/span>) {<\/span>\r\n \u00a0 \u00a0this<\/span>.name<\/span> =<\/span> name<\/span>;<\/span>\r\n  }<\/span>\r\n\u200b<\/span>\r\n \u00a0login<\/span> =<\/span> (pass<\/span>) =><\/span> this<\/span>.#password === pass;<\/span><\/span>\r\n}<\/span><\/pre>\n
                                                                                                                \n
                                                                                                                \n<\/div>\n
                                                                                                                5 HTML \u5f15\u5165 JavaScript<\/span><\/h2>\n
                                                                                                                5.1 \u5916\u90e8\u811a\u672c<\/span><\/h3>\n
                                                                                                                  \n
                                                                                                                • \n
                                                                                                                  \u7f16\u5199\u5728HTML\u6587\u6863\u4e2d\u7684<\/span><head> <\/head><\/code><\/span>\u5934\u90e8\u5143\u7d20\u4e4b\u95f4\uff0c\u901a\u8fc7<\/span><link><\/code><\/span>\u5143\u7d20\u6807\u7b7e\u5f15\u5165\u72ec\u7acb CSS \u6587\u4ef6\uff0c\u65b9\u4fbf\u5b9e\u73b0\u591a\u9875\u9762\u590d\u7528\uff1a<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                  <<\/span>head<\/span>><\/span><\/span>\r\n \u00a0 \u00a0<!-- \u5f15\u5165\u5916\u90e8 JavaScript \u811a\u672c --><\/span><\/span>\r\n \u00a0 \u00a0<\/span>\r\n \u00a0 \u00a0<<\/span>script<\/span> type<\/span>=\"application\/javascript\"<\/span> src<\/span>=\"script1.js\"<\/span>><\/span> <\/<\/span>script<\/span>><\/span> <\/span>\r\n    <!-- type=\"application\/javascript\" \u5728\u65e7\u7248\u6d4f\u89c8\u5668\u4e2d\u53ef\u80fd\u65e0\u6cd5\u8bc6\u522b --><\/span><\/span>\r\n\u200b<\/span>\r\n \u00a0 \u00a0<!-- \u53ef\u4ee5\u4f7f\u7528 type=\"text\/javascript\" \u66ff\u4ee3\uff0c\u6216\u76f4\u63a5\u7701\u7565 type \u5c5e\u6027\u3002 --><\/span><\/span>\r\n \u00a0 \u00a0<<\/span>script<\/span> type<\/span>=\"text\/javascript\"<\/span> src<\/span>=\"script2.js\"<\/span>><\/span> <\/<\/span>script<\/span>><\/span> <\/span>\r\n \u00a0 \u00a0<<\/span>script<\/span> src<\/span>=\"script3.js\"<\/span>><\/span> <\/<\/span>script<\/span>><\/span> <\/span>\r\n<\/<\/span>head<\/span>><\/span><\/span><\/pre>\n
                                                                                                                  5.2 \u5185\u90e8\u811a\u672c<\/span><\/h3>\n
                                                                                                                    \n
                                                                                                                  • \n
                                                                                                                    \u901a\u5e38\u7f16\u5199\u5728HTML\u6587\u6863\u4e2d\u7684<\/span><head> <\/head><\/code><\/span>\u5934\u90e8\u5143\u7d20\u4e4b\u95f4\u7684<\/span><script> <\/script><\/code><\/span>\u5143\u7d20\u5185\uff0c\u901a\u8fc7\u5728<\/span><script><\/code><\/span>\u5143\u7d20\u5185\uff0c\u76f4\u63a5\u63d2\u5165 JavaScript \u4ee3\u7801\uff1a<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                    <<\/span>head<\/span>><\/span><\/span>\r\n \u00a0 \u00a0<!-- JavaScript \u811a\u672c\uff0c\u5199\u5728 <head> \u5143\u7d20\u5185--><\/span><\/span>\r\n \u00a0 \u00a0<<\/span>script<\/span> type<\/span>=\"application\/javascript\"<\/span>><\/span><\/span>\r\n        document<\/span>.write<\/span>(\"JS \u6587\u6863\u6d41\u8f93\u51fa\u6587\u672c\"<\/span>);<\/span>\r\n    <\/<\/span>script<\/span>><\/span><\/span>\r\n<\/<\/span>head<\/span>><\/span><\/span><\/pre>\n
                                                                                                                      \n
                                                                                                                    • \n
                                                                                                                      JavaScript \u80fd\u591f\u76f4\u63a5\u5199\u5165 HTML \u8f93\u51fa\u6d41\u4e2d\uff1a<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                      <<\/span>body<\/span>><\/span><\/span>\r\n \u00a0 \u00a0<!-- JavaScript \u811a\u672c\uff0c\u5199\u5728 <body> \u5143\u7d20\u5185--><\/span><\/span>\r\n    <<\/span>script<\/span> type<\/span>=\"application\/javascript\"<\/span>><\/span><\/span>\r\n        document<\/span>.write<\/span>(\"<h1>\u4e00\u7ea7\u6807\u9898<\/h1>\"<\/span>);<\/span>\r\n        document<\/span>.write<\/span>(\"<p>\u6587\u672c\u6bb5\u843d\u3002<\/p>\"<\/span>);<\/span>\r\n    <\/<\/span>script<\/span>><\/span><\/span>\r\n<\/<\/span>body<\/span>><\/span><\/span><\/pre>\n
                                                                                                                      5.3 \u5f15\u5165\u4ee3\u7801\u4f4d\u7f6e<\/span><\/h3>\n
                                                                                                                       JavaScript \u4ee3\u7801\uff0c\u53ef\u4ee5\u653e\u5728 HTML \u9875\u9762\u4e2d\u4efb\u4f55\u4f4d\u7f6e\uff0c\u4f46\u662f\u6d4f\u89c8\u5668\u89e3\u91ca HTML \u65f6\u662f\u6309\u5148\u540e\u987a\u5e8f\u7684\uff0c\u6240\u4ee5\u653e\u7f6e\u524d\u9762\u7684 <\/span>script<\/code><\/span> \u811a\u672c\u5c31\u5148\u88ab\u6267\u884c\u3002<\/span><\/p>\n
                                                                                                                       \u56e0\u6b64\uff0c\u8fdb\u884c\u9875\u9762\u663e\u793a\u521d\u59cb\u5316\u7684 JavaScript \u5fc5\u987b\u653e\u5728 <\/span><head><\/code><\/span>\u5143\u7d20\u91cc\u9762\uff0c\u56e0\u4e3a\u521d\u59cb\u5316\u90fd\u8981\u6c42\u63d0\u524d\u8fdb\u884c\uff08\u5982\u7ed9\u9875\u9762 <\/span><body><\/code><\/span> \u8bbe\u7f6e CSS \u7b49\uff09\u3002<\/span><\/p>\n
                                                                                                                       \u5982\u679c\u662f\u901a\u8fc7\u4e8b\u4ef6\u8c03\u7528\u6267\u884c\u7684 <\/span>function<\/code><\/span>\uff0c\u90a3\u4e48 JavaScript \u4ee3\u7801\u653e\u7f6e\u7684\u4f4d\u7f6e\u6ca1\u4ec0\u4e48\u7279\u522b\u8981\u6c42\u3002<\/span><\/p>\n
                                                                                                                      5.4 \u5f15\u5165\u7c7b\u578b\u517c\u5bb9\u6027<\/span><\/h3>\n
                                                                                                                      <script><\/code><\/span>\u5143\u7d20\u6807\u7b7e\u4e2d\u7684 <\/span>type<\/code><\/span> \u5c5e\u6027\uff0c\u82e5\u8bbe\u7f6e\u4e3a <\/span>type=\"application\/javascript\"<\/code><\/span> \uff0c\u5728\u65e7\u7248\u6d4f\u89c8\u5668\u4e2d\u53ef\u80fd\u65e0\u6cd5\u8bc6\u522b\u3002<\/span><\/p>\n
                                                                                                                       \u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528 <\/span>type=\"text\/javascript\"<\/code><\/span> \u66ff\u4ee3\uff0c\u6216\u76f4\u63a5\u7701\u7565 <\/span>type<\/code><\/span> \u5c5e\u6027\u3002<\/span><\/p>\n
                                                                                                                      \n
                                                                                                                      \n<\/div>\n
                                                                                                                      6 \u52a8\u6001\u9875\u9762\u4e8b\u4ef6<\/span><\/h2>\n
                                                                                                                      6.1 \u4e8b\u4ef6\u6982\u8ff0<\/span><\/h3>\n
                                                                                                                       JavaScript \u53ef\u5e94\u7528\u4e8e\u521b\u5efa\u52a8\u6001\u9875\u9762\u3002<\/span>\u4e8b\u4ef6<\/span><\/strong><\/span>\u662f\u53ef\u4ee5\u88ab JavaScript \u4fa6\u6d4b\u5230\u7684\u884c\u4e3a\u3002 \u7f51\u9875\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u53ef\u4ee5\u4ea7\u751f\u67d0\u4e9b\u53ef\u4ee5\u89e6\u53d1 JavaScript \u51fd\u6570\u6216\u7a0b\u5e8f\u7684\u4e8b\u4ef6\u3002<\/span><\/p>\n
                                                                                                                       \u4f8b\u5982\uff1a\u5f53\u7f51\u9875\u7528\u6237<\/span>\u5355\u51fb\u6309\u94ae<\/span><\/strong><\/span>\u6216\u8005<\/span>\u63d0\u4ea4\u8868\u5355\u6570\u636e<\/span><\/strong><\/span>\u65f6\uff0c\u5c31\u53d1\u751f\u4e00\u4e2a\u9f20\u6807\u5355\u51fb\uff08<\/span>onclick<\/code><\/span>\uff09\u4e8b\u4ef6\uff0c\u9700\u8981\u6d4f\u89c8\u5668\u505a\u51fa\u5904\u7406\uff0c\u518d\u8fd4\u56de\u7ed9\u7f51\u9875\u7528\u6237\u4e00\u4e2a\u7ed3\u679c\u3002<\/span><\/p>\n
                                                                                                                       \u4f7f\u7528\u4e8b\u4ef6\uff0c\u5373\u5728 <\/span>HTML \u7f51\u9875\u5143\u7d20<\/span><\/strong><\/span>\u4e2d\u8bbe\u7f6e\u8be5\u4e8b\u4ef6<\/span>\u5c5e\u6027<\/span><\/strong><\/span>\u3002<\/span><\/p>\n
                                                                                                                      6.2 \u5e38\u7528\u4e8b\u4ef6<\/span><\/h3>\n
                                                                                                                        \n
                                                                                                                      • \n
                                                                                                                        onclick<\/code><\/span>\uff1a<\/span>\u9f20\u6807\u5355\u51fb<\/span><\/strong><\/span>\u4e8b\u4ef6<\/span><\/p>\n
                                                                                                                        \u5f53\u5728\u7f51\u9875\u4e0a\u5355\u51fb\u9f20\u6807\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f <\/span>onclick<\/code><\/span> \u4e8b\u4ef6\u3002\u540c\u65f6 <\/span>onclick<\/code><\/span> \u4e8b\u4ef6\u8c03\u7528\u7684<\/span>\u7a0b\u5e8f\u5757<\/span><\/strong><\/span>\u5c31\u4f1a\u88ab\u6267\u884c\uff0c\u901a\u5e38\u4e0e <\/span>HTML \u8f93\u5165\/\u6309\u94ae<\/span><\/strong><\/span>\u4e00\u8d77\u4f7f\u7528\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                        <<\/span>input<\/span> name<\/span>=\"button1\"<\/span> type<\/span>=\"button\"<\/span> value<\/span>=\"\u70b9\u51fb\u63d0\u4ea4\"<\/span> onclick<\/span>=\"submit1()\"<\/span> \/><\/span><\/span><\/pre>\n
                                                                                                                          \n
                                                                                                                        • \n
                                                                                                                          onmouseover<\/code><\/span>\uff1a<\/span>\u9f20\u6807\u7ecf\u8fc7<\/span><\/strong><\/span>\u4e8b\u4ef6<\/span><\/p>\n
                                                                                                                          \u5f53\u9f20\u6807\u79fb\u5230\u4e00\u4e2a\u7f51\u9875\u4e0a\u7684\u5bf9\u8c61\u65f6\uff0c\u8be5\u5bf9\u8c61\u5c31\u89e6\u53d1 <\/span>onmouseover<\/code><\/span> \u4e8b\u4ef6\uff0c\u5e76\u6267\u884c <\/span>onmouseover<\/code><\/span> \u4e8b\u4ef6\u8c03\u7528\u7684<\/span>\u7a0b\u5e8f\u5757<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                        • \n
                                                                                                                          onmouseout<\/code><\/span>\uff1a<\/span>\u9f20\u6807\u79fb\u5f00<\/span><\/strong><\/span>\u4e8b\u4ef6<\/span><\/p>\n
                                                                                                                          \u5f53\u9f20\u6807\u79fb\u5f00\u5f53\u524d\u7f51\u9875\u4e0a\u7684\u5bf9\u8c61\u65f6\uff0c\u5c31\u89e6\u53d1 <\/span>onmouseout<\/code><\/span> \u4e8b\u4ef6\uff0c\u6267\u884c <\/span>onmouseout<\/code><\/span> \u8c03\u7528\u7684<\/span>\u7a0b\u5e8f\u5757<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                        • \n
                                                                                                                          onchange<\/code><\/span>\uff1a\u6587\u672c\u6846<\/span>\u5185\u5bb9\u53d1\u751f\u6539\u53d8<\/span><\/strong><\/span>\u4e8b\u4ef6<\/span><\/p>\n
                                                                                                                          \u5f53 HTML \u7f51\u9875\u7684\u6587\u672c\u6846<\/span>\u5185\u5bb9\u53d1\u751f\u6539\u53d8<\/span><\/strong><\/span>\u65f6\uff0c\u4f1a\u89e6\u53d1 <\/span>onchange<\/code><\/span> \u4e8b\u4ef6\uff0c\u540c\u65f6\u6267\u884c <\/span>onchange<\/code><\/span> \u8c03\u7528\u7684<\/span>\u7a0b\u5e8f\u5757<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                        • \n
                                                                                                                          onselect<\/code><\/span>\uff1a\u6587\u672c\u6846<\/span>\u5185\u5bb9\u88ab\u9009\u4e2d<\/span><\/strong><\/span>\u4e8b\u4ef6<\/span><\/p>\n
                                                                                                                          \u5f53\u6587\u672c\u6846\u6216\u8005\u6587\u672c\u57df\u4e2d\u7684\u6587\u5b57\u88ab\u9009\u4e2d\u65f6\uff0c\u89e6\u53d1 <\/span>onselect<\/code><\/span> \u4e8b\u4ef6\uff0c\u540c\u65f6 <\/span>onselect<\/code><\/span> \u8c03\u7528\u7684<\/span>\u7a0b\u5e8f\u5757<\/span><\/strong><\/span>\u5c31\u4f1a\u88ab\u6267\u884c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                        • \n
                                                                                                                          onfocus<\/code><\/span>\uff1a<\/span>\u5149\u6807\u805a\u96c6<\/span><\/strong><\/span>\u4e8b\u4ef6<\/span><\/p>\n
                                                                                                                          \u5f53\u7f51\u9875\u4e2d\u7684\u5bf9\u8c61\u83b7\u5f97\u805a\u70b9\u65f6\uff0c\u4f8b\u5982\u5c06\u5149\u6807\u79fb\u5230 HTML \u7f51\u9875\u5bf9\u8c61\u4e0a<\/span>\u8fdb\u884c\u805a\u7126\u65f6<\/span><\/strong><\/span>\uff0c\u5c31\u4f1a\u6267\u884c <\/span>onfocus<\/code><\/span> \u8c03\u7528\u7684<\/span>\u7a0b\u5e8f\u5757<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                        • \n
                                                                                                                          onblur<\/code><\/span>\uff1a<\/span>\u5149\u6807\u79bb\u5f00<\/span><\/strong><\/span>\u4e8b\u4ef6<\/span><\/p>\n
                                                                                                                          onblur<\/code><\/span> \u4e8b\u4ef6\u4e0e <\/span>onfocus<\/code><\/span> \u4e8b\u4ef6\u662f\u76f8\u5bf9\u4e92\u53cd\u7684\uff0c\u4f8b\u5982\u5c06\u5149\u6807<\/span>\u79bb\u5f00\u5f53\u524d\u83b7\u5f97\u805a\u7126<\/span><\/strong><\/span>\u7684 HTML \u7f51\u9875\u5bf9\u8c61\u65f6\uff0c\u89e6\u53d1 <\/span>onblur<\/code><\/span> \u4e8b\u4ef6\uff0c\u540c\u65f6\u6267\u884c <\/span>onblur<\/code><\/span> \u8c03\u7528\u7684<\/span>\u7a0b\u5e8f\u5757<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                        • \n
                                                                                                                          onload<\/code><\/span>\uff1a<\/span>\u7f51\u9875\u52a0\u8f7d<\/span><\/strong><\/span>\u4e8b\u4ef6<\/span><\/p>\n
                                                                                                                          \u5728<\/span>\u9875\u9762\u52a0\u8f7d\u5b8c\u6210\u540e<\/span><\/strong><\/span>\uff0c\u5199\u5728 <\/span><body><\/code><\/span> \u6807\u7b7e\u5185\u7684 <\/span>onload<\/code><\/span> \u4e8b\u4ef6\u4f1a\u7acb\u5373\u53d1\u751f\uff0c\u540c\u65f6\u6267\u884c <\/span>onload<\/code><\/span> \u8c03\u7528\u7684<\/span>\u7a0b\u5e8f\u5757<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                        • \n
                                                                                                                          onunload<\/code><\/span>\uff1a<\/span>\u7f51\u9875\u5378\u8f7d<\/span><\/strong><\/span>\u4e8b\u4ef6<\/span><\/p>\n
                                                                                                                          \u5f53\u7528\u6237<\/span>\u9000\u51fa\u9875\u9762<\/span><\/strong><\/span>\u65f6\uff08\u9875\u9762\u5173\u95ed\u3001\u9875\u9762\u5237\u65b0\u7b49\uff09\uff0c\u4f1a\u89e6\u53d1 <\/span>onunload<\/code><\/span> \u4e8b\u4ef6\uff0c\u540c\u65f6\u6267\u884c <\/span>onunload<\/code><\/span> \u8c03\u7528\u7684<\/span>\u7a0b\u5e8f\u5757<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                          \n
                                                                                                                          \n<\/div>\n
                                                                                                                          7 JavaScript \u5185\u7f6e\u5bf9\u8c61<\/span><\/h2>\n
                                                                                                                          7.1 JS \u5bf9\u8c61\u6982\u8ff0<\/span><\/h3>\n
                                                                                                                           JavaScript \u4e2d\u7684<\/span>\u6240\u6709\u4e8b\u7269<\/span><\/strong><\/span>\u90fd\u662f\u5bf9\u8c61\uff0c\u5982:\u5b57\u7b26\u4e32\u3001\u6570\u503c\u3001\u6570\u7ec4\u3001\u51fd\u6570\u7b49\uff0c\u6bcf\u4e2a\u5bf9\u8c61\u5e26\u6709<\/span>\u5c5e\u6027<\/span><\/strong><\/span>\u548c<\/span>\u65b9\u6cd5<\/span><\/strong><\/span>\u3002<\/span><\/p>\n
                                                                                                                            \n
                                                                                                                          • \n
                                                                                                                            \u5bf9\u8c61\u7684\u5c5e\u6027\uff1a<\/span><\/strong><\/span>\u53cd\u6620\u8be5\u5bf9\u8c61\u67d0\u4e9b\u7279\u5b9a\u7684\u6027\u8d28\u7684\u3002\u4f8b\u5982\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3001\u56fe\u50cf\u7684\u957f\u5bbd\u7b49\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                          • \n
                                                                                                                            \u5bf9\u8c61\u7684\u65b9\u6cd5\uff1a<\/span><\/strong><\/span>\u80fd\u591f\u5728\u5bf9\u8c61\u4e0a\u6267\u884c\u7684\u52a8\u4f5c\u3002\u4f8b\u5982\u8868\u5355\u7684\u201c\u63d0\u4ea4\u201d(Submit)\uff0c\u65f6\u95f4\u7684\u201c\u83b7\u53d6\u201d(getYear)\u7b49\u3002<\/span><\/p>\n
                                                                                                                            JavaScript \u63d0\u4f9b\u591a\u4e2a\u5185\u7f6e\u5bf9\u8c61\uff0c\u6bd4\u5982 <\/span>String<\/code><\/span>\u3001<\/span>Date<\/code><\/span>\u3001<\/span>Array<\/code><\/span> \u7b49\u7b49\u3002\u4f7f\u7528<\/span>\u5185\u7f6e\u5bf9\u8c61<\/span><\/strong><\/span>\u524d\u5148\u5b9a\u4e49\uff0c\u5982\u4e0b\u4f7f\u7528\u6570\u7ec4\u5bf9\u8c61\uff1a<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                            var<\/span> obj_name1<\/span> =<\/span> new<\/span> Array<\/span>(); \/\/\u4f7f\u7528new\u5173\u952e\u5b57\u5b9a\u4e49\u5bf9\u8c61<\/span><\/span>\r\nvar<\/span> obj_name2<\/span> =<\/span> [];<\/span>\r\n\u200b<\/span>\r\n\/\/ \u8bbf\u95ee\u5bf9\u8c61\u7684\u5c5e\u6027<\/span><\/span>\r\nobj_name1<\/span>.property_Name<\/span>;<\/span>\r\n\u200b<\/span>\r\n\/\/ \u8bbf\u95ee\u5bf9\u8c61\u7684\u65b9\u6cd5<\/span><\/span>\r\nobj_name2<\/span>.method_Name<\/span>;<\/span><\/pre>\n
                                                                                                                            7.2 Array \u6570\u7ec4\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                              \n
                                                                                                                            • \n
                                                                                                                              Array \u6570\u7ec4\u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                \n
                                                                                                                              • \n
                                                                                                                                <\u6570\u7ec4\u5bf9\u8c61>.length<\/code><\/span>\uff1a\u8fd4\u56de\u6570\u7ec4\u7684<\/span>\u957f\u5ea6<\/span><\/strong><\/span>\uff0c\u5373\u6570\u7ec4\u91cc\u6709\u591a\u5c11\u4e2a\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                              • \n
                                                                                                                                <\u6570\u7ec4\u5bf9\u8c61>.constructor<\/code><\/span>\uff1a \u8fd4\u56de\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\u7684<\/span>\u539f\u578b\u51fd\u6570<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                              • \n
                                                                                                                                Array.prototype<\/code><\/span>\uff1a\u5141\u8bb8\u5411\u6570\u7ec4\u5bf9\u8c61<\/span>\u6dfb\u52a0\u5c5e\u6027\u6216\u65b9\u6cd5<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                              • \n
                                                                                                                                Array \u6570\u7ec4\u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span><\/p>\n
                                                                                                                                  \n
                                                                                                                                • \n
                                                                                                                                  [...]<\/code><\/span>\uff1a<\/span>\u521b\u5efa<\/span><\/strong><\/span>\u4e00\u4e2a\u65b0\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.concat(array1,array2,...,arrayN);<\/code><\/span>\uff1a<\/span>\u8fde\u63a5<\/span><\/strong><\/span>\u4e24\u4e2a\u6216\u66f4\u591a\u4e2a\u6570\u7ec4\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/span><\/p>\n
                                                                                                                                  \u8be5\u65b9\u6cd5\u4e0d\u4f1a\u6539\u53d8\u73b0\u6709\u7684\u6570\u7ec4 <\/span>arrayObject<\/code><\/span>\uff0c\u800c\u4ec5\u4ec5\u4f1a\u8fd4\u56de\u88ab\u8fde\u63a5\u6570\u7ec4\u7684\u4e00\u4e2a\u526f\u672c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.copyWithin(targetIndex,sourceIndex);<\/code><\/span>\uff1a\u4ece\u6570\u7ec4\u7684\u6307\u5b9a\u4f4d\u7f6e<\/span>\u62f7\u8d1d<\/span><\/strong><\/span>\u5143\u7d20\u5230\u6570\u7ec4\u7684\u53e6\u4e00\u4e2a\u6307\u5b9a\u4f4d\u7f6e\u4e2d\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.entries();<\/code><\/span>\uff1a\u8fd4\u56de\u6570\u7ec4\u7684\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u5305\u542b\u4e86\u6570\u7ec4\u7684<\/span>\u952e\u503c\u5bf9<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.keys();<\/code><\/span>\uff1a\u8fd4\u56de\u6570\u7ec4\u7684\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u5305\u542b\u539f\u59cb\u6570\u7ec4\u7684\u952e(key)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.every(\u51fd\u6570);<\/code><\/span>\uff1a\u901a\u8fc7<\/span>\u51fd\u6570<\/span><\/strong><\/span>\uff0c\u68c0\u6d4b\u6570\u503c\u5143\u7d20\u7684\u6bcf\u4e2a\u5143\u7d20\u662f\u5426\u90fd\u7b26\u5408\u6761\u4ef6\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.filter(\u51fd\u6570);<\/code><\/span>\uff1a\u901a\u8fc7\u51fd\u6570\uff0c\u68c0\u6d4b\u6570\u503c\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u7b26\u5408\u6761\u4ef6\u6240\u6709\u5143\u7d20\u7684<\/span>\u6570\u7ec4<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.find(\u51fd\u6570);<\/code><\/span>\uff1a\u8fd4\u56de\u7b26\u5408\u6d4b\u8bd5\uff08\u51fd\u6570\uff09\u6761\u4ef6\u7684<\/span>\u6570\u7ec4\u5143\u7d20<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.findIndex(\u51fd\u6570);<\/code><\/span>\uff1a\u8fd4\u56de\u7b26\u5408\u6d4b\u8bd5\uff08\u51fd\u6570\uff09\u6761\u4ef6\u7684\u6570\u7ec4\u5143\u7d20<\/span>\u7d22\u5f15<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.some(\u51fd\u6570);<\/code><\/span>\uff1a\u68c0\u6d4b\u6570\u7ec4\u5143\u7d20\u4e2d\u662f\u5426\u6709\u5143\u7d20\u7b26\u5408\u6307\u5b9a\u6761\u4ef6\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.fill(\u56fa\u5b9a\u503c);<\/code><\/span>\uff1a\u4f7f\u7528\u4e00\u4e2a\u56fa\u5b9a\u503c\u6765<\/span>\u586b\u5145<\/span><\/strong><\/span>\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.forEach(\u56de\u8c03\u51fd\u6570);<\/code><\/span>\uff1a\u6570\u7ec4\u6bcf\u4e2a\u5143\u7d20\u90fd\u6267\u884c\u4e00\u6b21<\/span>\u56de\u8c03\u51fd\u6570<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.reduce(\u56de\u8c03\u51fd\u6570);<\/code><\/span>\uff1a\u5c06\u6570\u7ec4\u5143\u7d20\u8ba1\u7b97\u4e3a\u4e00\u4e2a\u503c\uff08\u4ece\u5de6\u5230\u53f3\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.reduceRight(\u56de\u8c03\u51fd\u6570);<\/code><\/span>\uff1a\u5c06\u6570\u7ec4\u5143\u7d20\u8ba1\u7b97\u4e3a\u4e00\u4e2a\u503c\uff08\u4ece\u53f3\u5230\u5de6\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.from(\"\u5b57\u7b26\u4e32\");<\/code><\/span>\uff1a\u901a\u8fc7\u7ed9\u5b9a\u7684\u5bf9\u8c61\u4e2d<\/span>\u521b\u5efa<\/span><\/strong><\/span>\u4e00\u4e2a\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.fromAsync();<\/code><\/span>\uff1a\u4ece\u5f02\u6b65\u53ef\u8fed\u4ee3\u5bf9\u8c61\u3001\u53ef\u8fed\u4ee3\u5bf9\u8c61\u6216\u7c7b\u6570\u7ec4\u5bf9\u8c61<\/span>\u521b\u5efa<\/span><\/strong><\/span>\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.includes(searchElement, fromIndex);<\/code><\/span>\uff1a\u5224\u65ad\u4e00\u4e2a\u6570\u7ec4\u662f\u5426\u5305\u542b\u4e00\u4e2a\u6307\u5b9a\u7684\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.indexOf(searchElement);<\/code><\/span>\uff1a\u641c\u7d22\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u5b83\u6240\u5728\u7684\u4f4d\u7f6e\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.isArray(Object);<\/code><\/span>\uff1a\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u4e3a\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.map(function(currentValue, index,arr),thisValue);<\/code><\/span>\uff1a\u901a\u8fc7\u6307\u5b9a\u51fd\u6570\u5904\u7406\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u5904\u7406\u540e\u7684\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.join(separator);<\/code><\/span>\uff1a\u628a\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u653e\u5165\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002\u5143\u7d20\u901a\u8fc7\u6307\u5b9a\u7684\u5206\u9694\u7b26\u8fdb\u884c\u5206\u9694\u3002<\/span><\/p>\n
                                                                                                                                  separator<\/code><\/span> \u662f\u53ef\u9009\u7684\u5206\u9694\u7b26\uff0c\u82e5\u7701\u7565\uff0c\u5219\u4f7f\u7528\u9017\u53f7<\/span>,<\/code><\/span>\u4f5c\u4e3a\u5206\u9694\u7b26\u3002<\/span><\/p>\n
                                                                                                                                  \u8fd9\u4e2a\u65b9\u6cd5\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u8be5\u5b57\u7b26\u4e32\u628a\u6570\u7ec4\u4e2d\u7684\u5404\u4e2a\u5143\u7d20\u4e32\u8d77\u6765\uff0c\u7528<\u5206\u9694\u7b26>\u7f6e\u4e8e\u5143\u7d20\u4e0e\u5143\u7d20\u4e4b\u95f4\u3002\u8fd9\u4e2a\u65b9\u6cd5<\/span>\u4e0d\u5f71\u54cd<\/span><\/strong><\/span>\u6570\u7ec4\u539f\u672c\u7684\u5185\u5bb9\u3002 <\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.reverse();<\/code><\/span>\uff1a\u98a0\u5012<\/span>\u53cd\u8f6c<\/span><\/strong><\/span>\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u987a\u5e8f\u3002<\/span><\/p>\n
                                                                                                                                  arrayObject.reverse();<\/code><\/span> \u4f1a\u6539\u53d8<\/span><\/strong><\/span>\u539f\u6765\u7684\u6570\u7ec4\uff0c\u800c\u4e0d\u4f1a\u521b\u5efa\u65b0\u7684\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.slice(start,end);<\/code><\/span>\uff1a\u9009\u53d6\u6570\u7ec4\u7684\u4e00\u90e8\u5206\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5373\u4ece <\/span>start\uff08\u5305\u542b\uff09<\/code><\/span>\u5230 <\/span>end\uff08\u4e0d\u5305\u542b\uff09<\/code><\/span>\u7684 arrayObject \u4e2d\u7684\u5143\u7d20\uff0c\u5e76\u4e0d\u4f1a\u4fee\u6539\u539f\u6570\u7ec4\u3002<\/span><\/p>\n
                                                                                                                                  start<\/code><\/span> \u662f\u5fc5\u9700\u7684\u8d77\u59cb\u4f4d\u7f6e\u3002\u5982\u679c <\/span>start<\/code><\/span> \u662f\u8d1f\u6570\uff0c\u5219\u4ece\u6570\u7ec4\u5c3e\u90e8\u5f00\u59cb\u7b97\u8d77\uff0c<\/span>-1<\/span><\/strong><\/span> \u662f\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c<\/span>-2<\/span><\/strong><\/span> \u662f\u5012\u6570\u7b2c\u4e8c\u4e2a\u5143\u7d20\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<\/span><\/p>\n
                                                                                                                                  end<\/code><\/span> \u662f\u53ef\u9009\u7684\u7ed3\u675f\u4f4d\u7f6e\u3002\u5982\u679c\u7701\u7565\u8be5\u53c2\u6570\uff0c\u5219\u5207\u5206\u7684\u6570\u7ec4\u5305\u542b\u4ece <\/span>start<\/code><\/span> \u5230\u6570\u7ec4\u7ed3\u675f\u7684\u6240\u6709\u5143\u7d20\u3002\u5982\u679c <\/span>end<\/code><\/span> \u662f\u8d1f\u6570\uff0c\u8868\u793a\u4ece\u6570\u7ec4\u5c3e\u90e8\u7b97\u8d77\u6765\u7684\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  arrayObject.sort(sortMethod);<\/code><\/span>\uff1a\u5bf9\u6570\u7ec4\u7684\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002<\/span><\/p>\n
                                                                                                                                  \u5982\u679c\u4e0d\u6307\u5b9a<\/span><sortMethod><\/code><\/span>\uff0c\u5219\u6309 unicode \u7801\u7684\u987a\u5e8f\u8fdb\u884c\u6392\u5217\u3002<\/span><\/p>\n
                                                                                                                                  \u5982\u679c\u6307\u5b9a<\/span><sortMethod><\/code><\/span>\uff0c\u5219\u6309<\/span><\u65b9\u6cd5\u51fd\u6570sortMethod><\/code><\/span>\u6240\u6307\u5b9a\u7684\u6392\u5e8f\u65b9\u6cd5\u8fdb\u884c\u6392\u5e8f\u3002<\/span><\/p>\n
                                                                                                                                  sortMethod(A,B);<\/code><\/span>\u6bd4\u8f83\u51fd\u6570\u5e94\u8be5\u5177\u6709\u4e24\u4e2a\u53c2\u6570 A \u548c B\uff0c\u4e14\u8be5\u51fd\u6570\u8981\u6bd4\u8f83\u4e24\u4e2a\u503c\uff0c\u7136\u540e\u8fd4\u56de\u4e00\u4e2a\u7528\u4e8e\u8bf4\u660e\u8fd9\u4e24\u4e2a\u503c\u7684\u76f8\u5bf9\u987a\u5e8f\u7684\u6570\u5b57\u3002\u5176\u8fd4\u56de\u503c\u5982\u4e0b\uff1a <\/span><\/p>\n
                                                                                                                                  \u82e5\u8fd4\u56de\u503c <\/span><=-1<\/code><\/span>\uff0c\u5219\u8868\u793a A \u5728\u6392\u5e8f\u540e\u7684\u5e8f\u5217\u4e2d\u51fa\u73b0\u5728 B \u4e4b\u524d\u3002<\/span> \u82e5\u8fd4\u56de\u503c <\/span>>-1 && <1<\/code><\/span>\uff0c\u5219\u8868\u793a A \u548c B \u5177\u6709\u76f8\u540c\u7684\u6392\u5e8f\u987a\u5e8f\u3002<\/span> \u82e5\u8fd4\u56de\u503c <\/span>>=1<\/code><\/span>\uff0c\u5219\u8868\u793a A \u5728\u6392\u5e8f\u540e\u7684\u5e8f\u5217\u4e2d\u51fa\u73b0\u5728 B \u4e4b\u540e\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  <\u6570\u7ec4\u5bf9\u8c61>.shift();<\/code><\/span>\uff1a\u5220\u9664\u5e76\u8fd4\u56de\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  <\u6570\u7ec4\u5bf9\u8c61>.unshift(\u65b0\u5143\u7d201,\u65b0\u5143\u7d202,...,\u65b0\u5143\u7d20N);<\/code><\/span>\uff1a\u5411\u6570\u7ec4\u7684\u5f00\u5934\u6dfb\u52a0\u4e00\u4e2a\u6216\u66f4\u591a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u65b0\u7684\u957f\u5ea6\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  <\u6570\u7ec4\u5bf9\u8c61>.pop();<\/code><\/span>\uff1a\u5220\u9664\u6570\u7ec4\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u5e76\u8fd4\u56de\u5220\u9664\u7684\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  <\u6570\u7ec4\u5bf9\u8c61>.push(\u65b0\u5143\u7d20);<\/code><\/span>\uff1a\u5411\u6570\u7ec4\u7684\u672b\u5c3e\u6dfb\u52a0\u4e00\u4e2a\u6216\u66f4\u591a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u65b0\u7684\u957f\u5ea6\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  <\u6570\u7ec4\u5bf9\u8c61>.splice(index,\u6570\u91cf,item1,...,itemX);<\/code><\/span>\uff1a\u4ece\u6570\u7ec4\u4e2d\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  <\u6570\u7ec4\u5bf9\u8c61>.toString();<\/code><\/span>\uff1a\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                • \n
                                                                                                                                  <\u6570\u7ec4\u5bf9\u8c61>.toLocaleString(locales[, options]);<\/code><\/span>\uff1a\u5c06\u6570\u7ec4\u8f6c\u5316\u4e3a\u672c\u5730\u6570\u7ec4\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\u3002\u6839\u636e\u5f53\u524d\u73af\u5883\u7684\u8bed\u8a00\u8bbe\u7f6e\uff08locale\uff09\u6765\u683c\u5f0f\u5316\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u3002<\/span><\/p>\n
                                                                                                                                    \n
                                                                                                                                  • \n
                                                                                                                                    locales<\/code><\/span>\uff08\u53ef\u9009\uff09\uff1a\u5b57\u7b26\u4e32\u6216\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u8868\u793a\u8bed\u8a00\u4ee3\u7801\uff08\u5982 “en-US”\u3001”zh-CN”\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    options<\/code><\/span>\uff08\u53ef\u9009\uff09\uff1a\u914d\u7f6e\u5bf9\u8c61\uff0c\u7528\u4e8e\u6307\u5b9a\u683c\u5f0f\u5316\u9009\u9879\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    <\u6570\u7ec4\u5bf9\u8c61>.valueOf();<\/code><\/span>\uff1a\u8fd4\u56de\u6570\u7ec4\u5bf9\u8c61\u7684\u539f\u59cb\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.of()<\/code><\/span>\uff1a\u5c06\u4e00\u7ec4\u503c\u8f6c\u6362\u4e3a\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.at()<\/code><\/span>\uff1a\u7528\u4e8e\u63a5\u6536\u4e00\u4e2a\u6574\u6570\u503c\u5e76\u8fd4\u56de\u8be5\u7d22\u5f15\u5bf9\u5e94\u7684\u5143\u7d20\uff0c\u5141\u8bb8\u6b63\u6570\u548c\u8d1f\u6570\u3002\u8d1f\u6574\u6570\u4ece\u6570\u7ec4\u4e2d\u7684\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\u5012\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.flat()<\/code><\/span>\uff1a\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u8fd9\u4e2a\u65b0\u6570\u7ec4\u7531\u539f\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u90fd\u8c03\u7528\u4e00\u6b21\u63d0\u4f9b\u7684\u51fd\u6570\u540e\u7684\u8fd4\u56de\u503c\u7ec4\u6210\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.flatMap()<\/code><\/span>\uff1a\u4f7f\u7528\u6620\u5c04\u51fd\u6570\u6620\u5c04\u6bcf\u4e2a\u5143\u7d20\uff0c\u7136\u540e\u5c06\u7ed3\u679c\u538b\u7f29\u6210\u4e00\u4e2a\u65b0\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.with()<\/code><\/span>\uff1a\u66f4\u65b0\u6570\u7ec4\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.findLastIndex()<\/code><\/span>\uff1a\u5bf9\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u6267\u884c\u4e00\u4e2a\u51fd\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.lastIndexOf()<\/code><\/span>\uff1a\u5bf9\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u6267\u884c\u4e00\u4e2a\u51fd\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.findLast()<\/code><\/span>\uff1a\u5bf9\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u6267\u884c\u4e00\u4e2a\u51fd\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.toReversed()<\/code><\/span>\uff1a\u53cd\u8f6c\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u987a\u5e8f\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.toSorted()<\/code><\/span>\uff1a\u5bf9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6309\u5b57\u6bcd\u987a\u5e8f\u8fdb\u884c\u6392\u5e8f\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    Array.toSpliced()<\/code><\/span>\uff1a\u5411\u6570\u7ec4\u4e2d\u6dfb\u52a0\u548c\/\u6216\u79fb\u9664\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                  • \n
                                                                                                                                    [Symbol.iterator]()<\/code><\/span> \u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\u8fed\u4ee3\u5668\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u4f1a\u4ea7\u751f\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u7d22\u5f15\u7684\u503c\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                    7.3 Date \u65e5\u671f\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                     \u65e5\u671f\u5bf9\u8c61\u53ef\u4ee5\u50a8\u5b58\u4efb\u610f\u4e00\u4e2a\u65e5\u671f\uff0c\u5e76\u4e14\u53ef\u4ee5\u7cbe\u786e\u5230\u6beb\u79d2\u6570\uff081\/1000 \u79d2\uff09\u3002<\/span><\/p>\n
                                                                                                                                      \n
                                                                                                                                    • \n
                                                                                                                                      \u5b9a\u4e49<\/span><\/strong><\/span> Date \u65e5\u671f\u5bf9\u8c61\uff1a<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                                      var<\/span> c_date<\/span> =<\/span> new<\/span> Date<\/span>(); \/\/\u5b9a\u4e49 c_date \u4e3a\u65e5\u671f\u5bf9\u8c61\uff0c\u4e14\u521d\u59cb\u503c\u4e3a(\u5f53\u524d\u7535\u8111\u7cfb\u7edf\u65f6\u95f4)\u3002<\/span><\/span>\r\nvar<\/span> d_date<\/span> =<\/span> new<\/span> Date<\/span>(2025<\/span>, 8<\/span>, 30<\/span>); \u00a0\/\/\u81ea\u5b9a\u4e49\u521d\u59cb\u503c\u4e3a2025\u5e748\u670830\u65e5<\/span><\/span>\r\nvar<\/span> d_date<\/span> =<\/span> new<\/span> Date<\/span>('Oct 1, 2025'<\/span>); \/\/\u81ea\u5b9a\u4e49\u521d\u59cb\u503c\u4e3a2025\u5e7410\u67081\u65e5<\/span><\/span><\/pre>\n
                                                                                                                                        \n
                                                                                                                                      • \n
                                                                                                                                        Date \u65e5\u671f\u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n
                                                                                                                                          \n
                                                                                                                                        • \n
                                                                                                                                          Object.constructor<\/code><\/span>\uff1a\u8fd4\u56de\u5bf9\u521b\u5efa\u6b64\u5bf9\u8c61\u7684 Date \u51fd\u6570\u7684\u5f15\u7528\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                        • \n
                                                                                                                                          Date.prototype<\/code><\/span>\uff1a\u5411\u5bf9\u8c61\u6dfb\u52a0\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                        • \n
                                                                                                                                          Date \u65e5\u671f\u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n
                                                                                                                                            \n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setFullYear(\u56db\u4f4d\u6570\u5b57);<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\uff08\u5168\uff09\u5e74\u4efd<\/span><\/strong><\/span>\u3002\u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u5e74\u4efd\uff08\u56db\u4f4d\u6570\u5b57\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getFullYear();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\uff08\u5168\uff09\u5e74\u4efd<\/span><\/strong><\/span>\u3002\u4ece Date \u5bf9\u8c61\u4ee5\u56db\u4f4d\u6570\u5b57\u8fd4\u56de\u5e74\u4efd\u3002<\/span><\/p>\n
                                                                                                                                            \u4f8b\u5982(\u706b\u72d0\u6d4f\u89c8\u5668)\u8fd4\u56de\uff1a\u3010\u661f\u671f \u6708 \u65e5 \u5e74 \u65f6:\u5206:\u79d2 \u65f6\u533a\u3011\u8fd9\u6837\u7684\u683c\u5f0f\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setMonth();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u6708\u4efd<\/span><\/strong><\/span>\u3002\u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u6708\u4efd (0 ~ 11)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getMonth();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u6708\u4efd<\/span><\/strong><\/span>\u3002\u4ece Date \u5bf9\u8c61\u8fd4\u56de\u6708\u4efd (0 ~ 11)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setDate();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u65e5\u671f\uff08\u5929\u6570\uff09<\/span><\/strong><\/span>\u3002\u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u6708\u7684\u67d0\u4e00\u5929 (1 ~ 31)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getDate();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u65e5\u671f\uff08\u5929\u6570\uff09<\/span><\/strong><\/span>\u3002\u4ece Date \u5bf9\u8c61\u8fd4\u56de\u4e00\u4e2a\u6708\u4e2d\u7684\u67d0\u4e00\u5929 (1 ~ 31)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setHours();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u5c0f\u65f6<\/span><\/strong><\/span>\u3002\u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u5c0f\u65f6 (0 ~ 23)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getHours();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u5c0f\u65f6<\/span><\/strong><\/span>\u3002\u8fd4\u56de Date \u5bf9\u8c61\u7684\u5c0f\u65f6 (0 ~ 23)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setMinutes();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u5206\u949f<\/span><\/strong><\/span>\u3002\u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u5206\u949f (0 ~ 59)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getMinutes();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u5206\u949f<\/span><\/strong><\/span>\u3002\u8fd4\u56de Date \u5bf9\u8c61\u7684\u5206\u949f (0 ~ 59)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setSeconds();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u79d2\u6570<\/span><\/strong><\/span>\u3002\u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u79d2\u949f (0 ~ 59)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getSeconds();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u79d2\u6570<\/span><\/strong><\/span>\u3002\u8fd4\u56de Date \u5bf9\u8c61\u7684\u79d2\u6570 (0 ~ 59)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setMilliseconds();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u6beb\u79d2\u6570<\/span><\/strong><\/span>\u3002\u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u6beb\u79d2 (0 ~ 999)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getMilliseconds();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u6beb\u79d2\u6570<\/span><\/strong><\/span>\u3002\u8fd4\u56de Date \u5bf9\u8c61\u7684\u6beb\u79d2(0 ~ 999)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setTime(\u8bbe\u7f6e\u503c);<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u65f6\u95f4\uff08\u6beb\u79d2\u5355\u4f4d\uff09<\/span><\/strong><\/span>\u3002setTime() \u65b9\u6cd5\u4ee5\u6beb\u79d2\u8bbe\u7f6e Date \u5bf9\u8c61\u3002<\/span><\/p>\n
                                                                                                                                            \u8bbe\u7f6e\u503c<\/span><\/strong><\/span>\u7684\u8ba1\u7b97\u4ece 1970\u5e741\u67081\u65e5\u96f6\u65f6 \u5230\u65e5\u671f\u5bf9\u8c61\u6240\u6307\u65e5\u671f\u65f6\u95f4 \u7684\u6beb\u79d2\u6570\uff0c\u82e5\u8bbe\u7f6e\u65f6\u95f4\u63a8\u8fdf2\u5c0f\u65f6\uff0c\u5219\u53ef\u4ee5\u8868\u793a\u4e3a<\/span>x.setTime(x.getTime() + 2 * 60 * 60 * 1000);<\/code><\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getTime();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u65f6\u95f4\uff08\u6beb\u79d2\u5355\u4f4d\uff09<\/span><\/strong><\/span>\u3002\u8fd4\u56de\uff081970 \u5e74 1 \u6708 1 \u65e5\u96f6\u65f6\uff09\u81f3\u4eca\u7684\u6beb\u79d2\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getDay();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u661f\u671f<\/span><\/strong><\/span>\u3002\u4ece Date \u5bf9\u8c61\u8fd4\u56de\u4e00\u5468\u4e2d\u7684\u67d0\u4e00\u5929 (0 ~ 6)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setUTCFullYear(\u56db\u4f4d\u6570\u5b57);<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\uff08\u5168\uff09\u5e74\u4efd<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6 (UTC) \u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u5e74\u4efd\uff08\u56db\u4f4d\u6570\u5b57\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getUTCFullYear();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\uff08\u5168\uff09\u5e74\u4efd<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6\u4ece Date \u5bf9\u8c61\u8fd4\u56de\u56db\u4f4d\u6570\u7684\u5e74\u4efd\u3002<\/span><\/p>\n
                                                                                                                                            \u4f8b\u5982(\u706b\u72d0\u6d4f\u89c8\u5668)\u8fd4\u56de\uff1a\u3010\u661f\u671f \u6708 \u65e5 \u5e74 \u65f6:\u5206:\u79d2 \u65f6\u533a\u3011\u8fd9\u6837\u7684\u683c\u5f0f\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setUTCMonth();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u6708\u4efd<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6 (UTC) \u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u6708\u4efd (0 ~ 11)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getUTCMonth();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u6708\u4efd<\/span><\/strong><\/span>\u3002 \u6839\u636e\u4e16\u754c\u65f6\u4ece Date \u5bf9\u8c61\u8fd4\u56de\u6708\u4efd (0 ~ 11)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setUTCDate();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u65e5\u671f\uff08\u5929\u6570\uff09<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6 (UTC) \u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u6708\u4efd\u7684\u4e00\u5929 (1 ~ 31)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getUTCDate();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u65e5\u671f\uff08\u5929\u6570\uff09<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6\u4ece Date \u5bf9\u8c61\u8fd4\u56de\u6708\u4e2d\u7684\u4e00\u5929 (1 ~ 31)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setUTCHours();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u5c0f\u65f6<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6 (UTC) \u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u5c0f\u65f6 (0 ~ 23)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getUTCHours();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u5c0f\u65f6<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6\u8fd4\u56de Date \u5bf9\u8c61\u7684\u5c0f\u65f6 (0 ~ 23)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setUTCMinutes();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u5206\u949f<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6 (UTC) \u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u5206\u949f (0 ~ 59)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getUTCMinutes();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u5206\u949f<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6\u8fd4\u56de Date \u5bf9\u8c61\u7684\u5206\u949f (0 ~ 59)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setUTCSeconds();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u79d2\u6570<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6 (UTC) \u8bbe\u7f6e\u6307\u5b9a\u65f6\u95f4\u7684\u79d2\u5b57\u6bb5\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getUTCSeconds();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u79d2\u6570<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6\u8fd4\u56de Date \u5bf9\u8c61\u7684\u79d2\u949f (0 ~ 59)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.setUTCMilliseconds();<\/code><\/span>\uff1a\u8bbe\u7f6e<\/span>\u6beb\u79d2\u6570<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6 (UTC) \u8bbe\u7f6e Date \u5bf9\u8c61\u4e2d\u7684\u6beb\u79d2 (0 ~ 999)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getUTCMilliseconds();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u6beb\u79d2\u6570<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6\u8fd4\u56de Date \u5bf9\u8c61\u7684\u6beb\u79d2(0 ~ 999)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.getUTCDay();<\/code><\/span>\uff1a\u83b7\u53d6<\/span>\u661f\u671f<\/span><\/strong><\/span>\u3002\u6839\u636e\u4e16\u754c\u65f6\u4ece Date \u5bf9\u8c61\u8fd4\u56de\u5468\u4e2d\u7684\u4e00\u5929 (0 ~ 6)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.parse(\"March 1, 2022\");<\/code><\/span>\uff1a\u8fd4\u56de1970\u5e741\u67081\u65e5\u5348\u591c\u5230\u6307\u5b9a\u65e5\u671f\uff08\u5b57\u7b26\u4e32\uff09\u7684<\/span>\u6beb\u79d2\u6570<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.toString();<\/code><\/span>\uff1a\u628a <\/span>Date \u5bf9\u8c61<\/span><\/strong><\/span>\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.toDateString();<\/code><\/span>\uff1a\u628a Date \u5bf9\u8c61\u7684<\/span>\u65e5\u671f\u90e8\u5206<\/span><\/strong><\/span>\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.toTimeString();<\/code><\/span>\uff1a\u628a Date \u5bf9\u8c61\u7684<\/span>\u65f6\u95f4\u90e8<\/span><\/strong><\/span>\u5206\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.toLocaleString();<\/code><\/span>\uff1a\u6839\u636e\u672c\u5730\u65f6\u95f4\u683c\u5f0f\uff0c\u628a <\/span>Date \u5bf9\u8c61<\/span><\/strong><\/span>\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.toLocaleDateString();<\/code><\/span>\uff1a \u6839\u636e\u672c\u5730\u65f6\u95f4\u683c\u5f0f\uff0c\u628a Date \u5bf9\u8c61\u7684<\/span>\u65e5\u671f\u90e8\u5206<\/span><\/strong><\/span>\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.toLocaleTimeString();<\/code><\/span>\uff1a\u6839\u636e\u672c\u5730\u65f6\u95f4\u683c\u5f0f\uff0c\u628a Date \u5bf9\u8c61\u7684<\/span>\u65f6\u95f4\u90e8\u5206<\/span><\/strong><\/span>\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.toUTCString();<\/code><\/span>\uff1a \u6839\u636e\u4e16\u754c\u65f6\uff0c\u628a <\/span>Date \u5bf9\u8c61<\/span><\/strong><\/span>\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.toISOString();<\/code><\/span>\uff1a\u4f7f\u7528 <\/span>ISO \u6807\u51c6<\/span><\/strong><\/span>\u8fd4\u56de\u5b57\u7b26\u4e32\u7684\u65e5\u671f\u683c\u5f0f\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.toJSON();<\/code><\/span>\uff1a\u4ee5 <\/span>JSON \u6570\u636e\u683c\u5f0f<\/span><\/strong><\/span>\u8fd4\u56de\u65e5\u671f\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.UTC();<\/code><\/span>\uff1a \u6839\u636e\u4e16\u754c\u65f6\u8fd4\u56de 1970 \u5e74 1 \u6708 1 \u65e5 \u5230<\/span>\u6307\u5b9a\u65e5\u671f<\/span><\/strong><\/span>\u7684\u6beb\u79d2\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.valueOf();<\/code><\/span>\uff1a \u8fd4\u56de Date \u5bf9\u8c61\u7684<\/span>\u539f\u59cb\u503c<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                          • \n
                                                                                                                                            <\u65e5\u671f\u5bf9\u8c61>.now();<\/code><\/span>\uff1a\u8fd4\u56de<\/span>\u5f53\u524d<\/span><\/strong><\/span>\u65f6\u95f4\u7684\u6beb\u79d2\u6570\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                            7.4 String \u5b57\u7b26\u4e32\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                              \n
                                                                                                                                            • \n
                                                                                                                                              \u5b9a\u4e49 <\/span><\/strong><\/span>String \u5b57\u7b26\u4e32\u5bf9\u8c61<\/span><\/p>\n
                                                                                                                                              \u76f4\u63a5\u8d4b\u503c<\/span>=\"\u5b57\u7b26\u4e32\u5185\u5bb9\";<\/code><\/span><\/p>\n<\/li>\n
                                                                                                                                            • \n
                                                                                                                                              String \u5b57\u7b26\u4e32\u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                \n
                                                                                                                                              • \n
                                                                                                                                                stringObject.length<\/code><\/span>\uff1a\u8fd4\u56de\u5b57\u7b26\u4e32\u7684<\/span>\u957f\u5ea6<\/span><\/strong><\/span>\uff08\u5b57\u7b26\u6570\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                              • \n
                                                                                                                                                Object.constructor<\/code><\/span>\uff1a\u5bf9\u521b\u5efa\u8be5\u5bf9\u8c61\u7684\u51fd\u6570\u7684<\/span>\u5f15\u7528<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                              • \n
                                                                                                                                                String.prototype<\/code><\/span>\uff1a\u5141\u8bb8\u5411\u5bf9\u8c61<\/span>\u6dfb\u52a0\u5c5e\u6027\u548c\u65b9\u6cd5<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                              • \n
                                                                                                                                                String \u5b57\u7b26\u4e32\u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                  \n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.toUpperCase();<\/code><\/span>\uff1a\u628a\u5c0f\u5199\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a<\/span>\u5927\u5199<\/span><\/strong><\/span>\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.toLowerCase();<\/code><\/span>\uff1a\u628a\u5927\u5199\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a<\/span>\u5c0f\u5199<\/span><\/strong><\/span>\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.toLocaleUpperCase();<\/code><\/span>\uff1a\u6839\u636e\u672c\u5730\u4e3b\u673a\u7684\u8bed\u8a00\u73af\u5883\u628a\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a<\/span>\u5927\u5199<\/span><\/strong><\/span>\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.toLocaleLowerCase();<\/code><\/span>\uff1a\u6839\u636e\u672c\u5730\u4e3b\u673a\u7684\u8bed\u8a00\u73af\u5883\u628a\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a<\/span>\u5c0f\u5199<\/span><\/strong><\/span>\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.concat(str1,str2,...,strN);<\/code><\/span>\uff1a<\/span>\u8fde\u63a5<\/span><\/strong><\/span>\u4e24\u4e2a\u6216\u66f4\u591a\u5b57\u7b26\u4e32\uff0c\u5e76\u8fd4\u56de\u65b0\u7684\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.startsWith(\"subString\");<\/code><\/span>\uff1a\u5224\u67e5\u770b\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u6307\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32<\/span>\u5f00\u5934<\/span><\/strong><\/span>\u7684\uff08\u533a\u5206\u5927\u5c0f\u5199\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.endsWith(\"subString\");<\/code><\/span>\uff1a\u5224\u65ad\u5f53\u524d\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u6307\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32<\/span>\u7ed3\u5c3e<\/span><\/strong><\/span>\u7684\uff08\u533a\u5206\u5927\u5c0f\u5199\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.fromCharCode(Unicode \u7f16\u7801);<\/code><\/span>\uff1a\u5c06 <\/span>Unicode \u7f16\u7801<\/span><\/strong><\/span>\u8f6c\u4e3a\u5b57\u7b26\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.includes(\"subString\");<\/code><\/span>\uff1a\u67e5\u627e\u5b57\u7b26\u4e32\u4e2d\u662f\u5426<\/span>\u5305\u542b<\/span><\/strong><\/span>\u6307\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.match(\u6b63\u5219\u8868\u8fbe\u5f0f);<\/code><\/span>\uff1a\u67e5\u627e\u627e\u5230\u4e00\u4e2a\u6216\u591a\u4e2a<\/span>\u6b63\u5219\u8868\u8fbe\u5f0f<\/span><\/strong><\/span>\u7684\u5339\u914d\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.replace(\"oldString\",\"newString\");<\/code><\/span>\uff1a\u5728\u5b57\u7b26\u4e32\u4e2d\u67e5\u627e\u5339\u914d\u7684<\/span>\u7b2c\u4e00\u4e2a<\/span><\/strong><\/span>\u5b50\u4e32\uff0c\u5e76\u66ff\u6362\u4e0e\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u7684\u5b50\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.replaceAll(\"oldString\",\"newString\");<\/code><\/span>\uff1a\u5728\u5b57\u7b26\u4e32\u4e2d\u67e5\u627e\u5339\u914d\u7684<\/span>\u6240\u6709<\/span><\/strong><\/span>\u5b50\u4e32\uff0c\u5e76\u66ff\u6362\u4e0e\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u7684\u5b50\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.search(\"subString\");<\/code><\/span>\uff1a\u67e5\u627e\u4e0e\u6b63\u5219\u8868\u8fbe\u5f0f\u76f8<\/span>\u5339\u914d<\/span><\/strong><\/span>\u7684\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.repeat(\u6b21\u6570);<\/code><\/span>\uff1a\u590d\u5236\u5b57\u7b26\u4e32\u6307\u5b9a<\/span>\u6b21\u6570<\/span><\/strong><\/span>\uff0c\u5e76\u5c06\u5b83\u4eec\u8fde\u63a5\u5728\u4e00\u8d77\u8fd4\u56de\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.slice(startPos,stopPos);<\/code><\/span>\uff1a\u63d0\u53d6\u5b57\u7b26\u4e32\u7684<\/span>\u7247\u65ad<\/span><\/strong><\/span>\uff0c\u5e76\u5728\u65b0\u7684\u5b57\u7b26\u4e32\u4e2d\u8fd4\u56de\u88ab\u63d0\u53d6\u7684\u90e8\u5206\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.trim();<\/code><\/span>\uff1a\u53bb\u9664\u5b57\u7b26\u4e32\u4e24\u8fb9\u7684<\/span>\u7a7a\u767d<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.charAt(index);<\/code><\/span>\uff1a\u8fd4\u56de\u5728<\/span>\u6307\u5b9a\u4f4d\u7f6e<\/span><\/strong><\/span>\u7684\u5b57\u7b26\u3002<\/span><\/p>\n
                                                                                                                                                  \u5b57\u7b26\u4e32\u4e2d\u7b2c\u4e00\u4e2a\u5b57\u7b26\u7684 index \u4e0b\u6807\u662f 0\uff0c\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u7684 index \u4e0b\u6807\u4e3a\u5b57\u7b26\u4e32\u957f\u5ea6\u51cf\u4e00\uff08<\/span>string.length-1<\/code><\/span>\uff09\u3002<\/span><\/p>\n
                                                                                                                                                  \u5982\u679c\u53c2\u6570 index \u4e0d\u5728 0 \u4e0e <\/span>string.length-1<\/code><\/span> \u4e4b\u95f4\uff0c<\/span>stringObject.charAt(index)<\/code><\/span>\u65b9\u6cd5\u5c06\u8fd4\u56de\u4e00\u4e2a<\/span>\u7a7a\u5b57\u7b26\u4e32<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.charCodeAt(index);<\/code><\/span>\uff1a\u8fd4\u56de\u5728<\/span>\u6307\u5b9a\u4f4d\u7f6e<\/span><\/strong><\/span>\u7684\u5b57\u7b26\u7684 Unicode \u7f16\u7801\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.indexOf(\"subString\", startpos);<\/code><\/span>\uff1a\u8fd4\u56de<\/span>\u6307\u5b9a\u5b57\u7b26\u4e32\u9996\u6b21\u51fa\u73b0<\/span><\/strong><\/span>\u7684\u4f4d\u7f6e\u3002<\/span><\/p>\n
                                                                                                                                                  subString<\/code><\/span> \u662f<\/span>\u5fc5\u9700<\/span><\/strong><\/span>\u6307\u5b9a\u7684<\/span>\u5b57\u7b26\u4e32<\/span><\/strong><\/span>\u3002<\/span><\/p>\n
                                                                                                                                                  startpos<\/code><\/span> \u662f<\/span>\u53ef\u9009<\/span><\/strong><\/span>\u7684\u6574\u6570\u53d6\u503c\uff0c\u4ece 0 \u5230 string.length-1 \u9009\u62e9\uff0c\u82e5\u7701\u7565 <\/span>startpos<\/code><\/span> \uff0c\u8868\u793a\u4ece 0 \uff08\u5373\u9996\u5b57\u7b26\uff09\u5f00\u59cb\u68c0\u7d22 \u3002<\/span><\/p>\n
                                                                                                                                                  \u5982\u679c <\/span>stringObject.indexOf(\"subString\", startpos)<\/code><\/span> \u8981\u68c0\u7d22\u7684\u5b57\u7b26\u4e32\u503c\u6ca1\u6709\u51fa\u73b0\uff0c\u5219\u8be5\u65b9\u6cd5\u8fd4\u56de <\/span>-1<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.lastIndexOf(\"subString\");<\/code><\/span>\uff1a\u4ece\u540e\u5411\u524d\u641c\u7d22\u5b57\u7b26\u4e32\uff0c\u5e76\u4ece\u8d77\u59cb\u4f4d\u7f6e\uff080\uff09\u5f00\u59cb\u8ba1\u7b97\u8fd4\u56de\u5b57\u7b26\u4e32\u6700\u540e\u51fa\u73b0\u7684\u4f4d\u7f6e\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.split(separator,limit);<\/code><\/span>\uff1a\u628a\u5b57\u7b26\u4e32<\/span>\u5206\u5272<\/span><\/strong><\/span>\u4e3a\u5b57\u7b26\u4e32\u6570\u7ec4\u3002<\/span><\/p>\n
                                                                                                                                                  separator<\/code><\/span> \u662f<\/span>\u5fc5\u9700<\/span><\/strong><\/span>\u6307\u5b9a\u7684<\/span>\u5206\u9694\u7b26<\/span><\/strong><\/span>\uff0c\u82e5 <\/span>separator<\/code><\/span> \u8bbe\u7f6e\u4e3a\uff08\u7a7a\u5b57\u7b26\u4e32<\/span>\" \"<\/code><\/span>\uff09\uff0c\u5219\u8868\u793a\u6bcf\u4e2a\u5b57\u7b26\u90fd\u4f1a\u88ab\u5206\u5272\u5f00\u3002<\/span><\/p>\n
                                                                                                                                                  limit<\/code><\/span> \u662f<\/span>\u53ef\u9009<\/span><\/strong><\/span>\u7684\u5206\u5272<\/span>\u6b21\u6570<\/span><\/strong><\/span>\u3002\u5982\u679c <\/span>limit<\/code><\/span> \u53c2\u6570<\/span>\u6709\u8bbe\u7f6e\u503c<\/span><\/strong><\/span>\uff0c\u5219\u8fd4\u56de\u7684\uff08\u5b50\u5b57\u7b26\u4e32\uff09\u6570\u91cf\u4e0d\u4f1a\u591a\u4e8e\u8fd9\u4e2a\u8bbe\u7f6e\u503c\u3002\u5982\u679c <\/span>limit<\/code><\/span> \u53c2\u6570<\/span>\u6ca1\u6709\u8bbe\u7f6e\u503c<\/span><\/strong><\/span>\uff0c\u5219\u4e0d\u9650\u5236\u8fd4\u56de\u7684\uff08\u5b50\u5b57\u7b26\u4e32\uff09\u6570\u91cf\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.substring(startPos,stopPos);<\/code><\/span>\uff1a <\/span>\u63d0\u53d6<\/span><\/strong><\/span>\u5b57\u7b26\u4e32\u4e2d\u4e24\u4e2a\u6307\u5b9a\u7684\u7d22\u5f15\u53f7\u4e4b\u95f4\u7684\u5b57\u7b26\u3002<\/span><\/p>\n
                                                                                                                                                  startPos<\/code><\/span> \u662f<\/span>\u5fc5\u9700<\/span><\/strong><\/span>\u6307\u5b9a\u7684<\/span>\u5f00\u59cb\u4f4d\u7f6e<\/span><\/strong><\/span>\uff0c\u662f\u4e00\u4e2a<\/span>\u975e\u8d1f\u6570<\/span><\/strong><\/span>\u7684\u6574\u6570\u3002<\/span><\/p>\n
                                                                                                                                                  stopPos<\/code><\/span> \u662f<\/span>\u53ef\u9009<\/span><\/strong><\/span>\u6307\u5b9a\u7684<\/span>\u7ed3\u675f\u4f4d\u7f6e<\/span><\/strong><\/span>\uff0c\u4e5f\u662f\u4e00\u4e2a<\/span>\u975e\u8d1f\u6570<\/span><\/strong><\/span>\u7684\u6574\u6570\u3002\u5982\u679c\u7701\u7565 <\/span>stopPos<\/code><\/span> \u53c2\u6570\uff0c\u5219\u8fd4\u56de\u7684\uff08\u5b50\u5b57\u7b26\u4e32\uff09\u4f1a\u4e00\u76f4\u5230\uff08\u539f\u5b57\u7b26\u4e32\uff09\u5bf9\u8c61\u7684\u7ed3\u5c3e\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.substr(startPos,length);<\/code><\/span>\uff1a\u4ece\u8d77\u59cb\u7d22\u5f15\u53f7\u63d0\u53d6\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a<\/span>\u6570\u76ee<\/span><\/strong><\/span>\u7684\u5b57\u7b26\u3002<\/span><\/p>\n
                                                                                                                                                  startPos<\/code><\/span> \u662f<\/span>\u5fc5\u9700<\/span><\/strong><\/span>\u6307\u5b9a\u7684<\/span>\u8d77\u59cb\u4f4d\u7f6e<\/span><\/strong><\/span>\u3002\u5982\u679c <\/span>startPos<\/code><\/span> \u662f\u8d1f\u6570\uff0c\u4ece\u5b57\u7b26\u4e32\u7684<\/span>\u5c3e\u90e8<\/span><\/strong><\/span>\u5f00\u59cb\u7b97\u8d77\u7684\u4f4d\u7f6e\u3002<\/span>-1<\/span><\/strong><\/span> \u6307\u5b57\u7b26\u4e32\u4e2d<\/span>\u6700\u540e\u4e00\u4e2a<\/span><\/strong><\/span>\u5b57\u7b26\uff0c<\/span>-2<\/span><\/strong><\/span> \u6307<\/span>\u5012\u6570\u7b2c\u4e8c\u4e2a<\/span><\/strong><\/span>\u5b57\u7b26\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002<\/span><\/p>\n
                                                                                                                                                  length<\/code><\/span> \u662f<\/span>\u53ef\u9009<\/span><\/strong><\/span>\u7684\u957f\u5ea6\uff0c\u5982\u679c\u7701\u7565 <\/span>length<\/code><\/span> \u53c2\u6570\uff0c\u5219\u8fd4\u56de\u4ece <\/span>startPos<\/code><\/span>\u5f00\u59cb\u5230 <\/span>stringObject<\/code><\/span> \u5bf9\u8c61\u7ed3\u5c3e\u7684\u5b57\u7b26\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  stringObject.valueOf();<\/code><\/span>\uff1a\u8fd4\u56de\u67d0\u4e2a\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684<\/span>\u539f\u59cb\u503c<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                • \n
                                                                                                                                                  Object.toString();<\/code><\/span>\uff1a\u8fd4\u56de\u4e00\u4e2a<\/span>\u5b57\u7b26\u4e32<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                  7.5 Math \u6570\u5b66\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                   Math \u5bf9\u8c61\u662f\u4e00\u4e2a\u56fa\u6709\u7684\u5bf9\u8c61\uff0c\u65e0\u9700\u521b\u5efa\u5b83\uff0c\u76f4\u63a5\u628a Math \u4f5c\u4e3a\u5bf9\u8c61\u4f7f\u7528\u5c31\u53ef\u4ee5\u8c03\u7528 Math \u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u8fd9\u662f Math \u5bf9\u8c61\u4e0e Date,String \u5bf9\u8c61\u7684\u533a\u522b\u3002<\/span><\/p>\n
                                                                                                                                                    \n
                                                                                                                                                  • \n
                                                                                                                                                    Math \u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                      \n
                                                                                                                                                    • \n
                                                                                                                                                      Math.E<\/code><\/span>\uff1a\u8fd4\u56de\u7b97\u672f\u5e38\u91cf e\uff0c\u5373\u81ea\u7136\u5bf9\u6570\u7684\u5e95\u6570\uff08\u7ea6\u7b49\u4e8e 2.718\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                    • \n
                                                                                                                                                      Math.LN2<\/code><\/span>\uff1a\u8fd4\u56de 2 \u7684\u81ea\u7136\u5bf9\u6570\uff08\u7ea6\u7b49\u4e8e 0.693\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                    • \n
                                                                                                                                                      Math.LN10<\/code><\/span>\uff1a\u8fd4\u56de 10 \u7684\u81ea\u7136\u5bf9\u6570\uff08\u7ea6\u7b49\u4e8e 2.302\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                    • \n
                                                                                                                                                      Math.LOG2E<\/code><\/span>\uff1a\u8fd4\u56de\u4ee5 2 \u4e3a\u5e95\u7684 e \u7684\u5bf9\u6570\uff08\u7ea6\u7b49\u4e8e 1.442\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                    • \n
                                                                                                                                                      Math.LOG10E<\/code><\/span>\uff1a\u8fd4\u56de\u4ee5 10 \u4e3a\u5e95\u7684 e \u7684\u5bf9\u6570\uff08\u7ea6\u7b49\u4e8e 0.434\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                    • \n
                                                                                                                                                      Math.PI<\/code><\/span>\uff1a\u8fd4\u56de\u5706\u5468\u7387\uff08\u7ea6\u7b49\u4e8e 3.14159\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                    • \n
                                                                                                                                                      Math.SQRT2<\/code><\/span>\uff1a\u8fd4\u56de 2 \u7684\u5e73\u65b9\u6839\uff08\u7ea6\u7b49\u4e8e 1.414\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                    • \n
                                                                                                                                                      Math.SQRT1_2<\/code><\/span>\uff1a\u8fd4\u56de 2 \u7684\u5e73\u65b9\u6839\u7684\u5012\u6570\uff08\u7ea6\u7b49\u4e8e 0.707\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                    • \n
                                                                                                                                                      Math \u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                        \n
                                                                                                                                                      • \n
                                                                                                                                                        Math.abs(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684\u7edd\u5bf9\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.cos(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684\u4f59\u5f26\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.sin(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684\u6b63\u5f26\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.tan(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684\u6b63\u5207\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.acos(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684\u53cd\u4f59\u5f26\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.asin(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684\u53cd\u6b63\u5f26\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.atan(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684\u53cd\u6b63\u5207\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.atan2(y,x);<\/code><\/span>\uff1a\u8fd4\u56de\u7531 x \u8f74\u5230\u70b9\uff08x,y\uff09\u7684\u89d2\u5ea6\uff08\u4ee5\u5f27\u5ea6\u4e3a\u5355\u4f4d\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.ceil(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u8fdb\u884c\u4e0a\u820d\u5165\u540e\u7684\u503c\uff0c\u5bf9 x \u8fdb\u884c\u5411\u4e0a\u53d6\u6574\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.floor(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u8fdb\u884c\u4e0b\u820d\u5165\u540e\u7684\u503c\uff0c\u5bf9 x \u8fdb\u884c\u5411\u4e0b\u53d6\u6574\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.round(x);<\/code><\/span>\uff1a\u628a x \u56db\u820d\u4e94\u5165\u4e3a\u6700\u63a5\u8fd1\u7684\u6574\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.exp(x);<\/code><\/span>\uff1a\u8fd4\u56de e\u7684\u6307\u6570\uff08 x \u6b21\u5e42\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.log(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684\u81ea\u7136\u5bf9\u6570\uff08\u4ee5 e \u4e3a\u5e95\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.max(x,y);<\/code><\/span>\uff1a\u8fd4\u56de x \u548c y \u4e4b\u4e2d\u7684\u6700\u5927\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.min(x,y);<\/code><\/span>\uff1a\u8fd4\u56de x \u548c y \u4e4b\u4e2d\u7684\u6700\u5c0f\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.pow(x,y);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684 y \u6b21\u5e42\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.sqrt(x);<\/code><\/span>\uff1a\u8fd4\u56de x \u7684\u5e73\u65b9\u6839\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.random();<\/code><\/span>\uff1a\u8fd4\u56de 0 ~ 1 \u4e4b\u95f4\u7684\u968f\u673a\u6570\uff0c\uff08\u5927\u4e8e\u6216\u7b49\u4e8e 0 \uff0c\u4f46\u5c0f\u4e8e 1)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.toSource();<\/code><\/span>\uff1a\u8fd4\u56de Math \u5bf9\u8c61\u7684\u6e90\u4ee3\u7801\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                      • \n
                                                                                                                                                        Math.valueOf();<\/code><\/span>\uff1a\u8fd4\u56de Math \u5bf9\u8c61\u7684\u539f\u59cb\u503c\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                        7.6 Boolean \u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                         Boolean \u5bf9\u8c61\u7528\u4e8e\u8f6c\u6362\u4e00\u4e2a\u4e0d\u662f Boolean \u7c7b\u578b\u7684\u503c\u8f6c\u6362\u4e3a Boolean \u7c7b\u578b\u503c (true \u6216\u8005false).<\/span><\/p>\n
                                                                                                                                                          \n
                                                                                                                                                        • \n
                                                                                                                                                          \u5b9a\u4e49 <\/span><\/strong><\/span>Boolean \u5bf9\u8c61\uff1a<\/span><\/p>\n
                                                                                                                                                          var myvar = new Boolean(1);<\/code><\/span><\/p>\n<\/li>\n
                                                                                                                                                        • \n
                                                                                                                                                          Boolean \u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                            \n
                                                                                                                                                          • \n
                                                                                                                                                            Object.constructor<\/code><\/span>\uff1a\u8fd4\u56de\u5bf9\u521b\u5efa\u6b64\u5bf9\u8c61\u7684 Boolean \u51fd\u6570\u7684\u5f15\u7528\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                          • \n
                                                                                                                                                            Boolean.prototype<\/code><\/span>\uff1a\u5411\u5bf9\u8c61\u6dfb\u52a0\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                          • \n
                                                                                                                                                            Boolean \u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                              \n
                                                                                                                                                            • \n
                                                                                                                                                              BooleanObject.toString();<\/code><\/span>\uff1a \u628a\u5e03\u5c14\u503c\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                            • \n
                                                                                                                                                              BooleanObject.valueOf();<\/code><\/span>\uff1a\u8fd4\u56de Boolean \u5bf9\u8c61\u7684\u539f\u59cb\u503c\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                              7.7 Number \u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                               Number \u5bf9\u8c61\u662f\u539f\u59cb\u6570\u503c\u7684\u5305\u88c5\u5bf9\u8c61\u3002<\/span><\/p>\n
                                                                                                                                                                \n
                                                                                                                                                              • \n
                                                                                                                                                                \u5b9a\u4e49 <\/span><\/strong><\/span>Number \u5bf9\u8c61\uff1a<\/span><\/p>\n
                                                                                                                                                                var num = new Number(value);<\/code><\/span><\/p>\n<\/li>\n
                                                                                                                                                              • \n
                                                                                                                                                                Number \u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                  \n
                                                                                                                                                                • \n
                                                                                                                                                                  Object.constructor<\/code><\/span>\uff1a\u8fd4\u56de\u5bf9\u521b\u5efa\u6b64\u5bf9\u8c61\u7684 Number \u51fd\u6570\u7684\u5f15\u7528\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number.prototype<\/code><\/span>\uff1a\u5141\u8bb8\u5411\u5bf9\u8c61\u6dfb\u52a0\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number.MAX_VALUE<\/code><\/span>\uff1a\u53ef\u8868\u793a\u7684\u6700\u5927\u7684\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number.MIN_VALUE<\/code><\/span>\uff1a\u53ef\u8868\u793a\u7684\u6700\u5c0f\u7684\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number.POSITIVE_INFINITY<\/code><\/span>\uff1a\u6b63\u65e0\u7a77\u5927\uff0c\u6ea2\u51fa\u65f6\u8fd4\u56de\u8be5\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number.NEGATIVE_INFINITY<\/code><\/span>\uff1a\u8d1f\u65e0\u7a77\u5927\uff0c\u6ea2\u51fa\u65f6\u8fd4\u56de\u8be5\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number.NaN<\/code><\/span>\uff1a\u975e\u6570\u5b57\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number.EPSILON<\/code><\/span>\uff1a\u8868\u793a 1 \u548c\u6bd4\u6700\u63a5\u8fd1 1 \u4e14\u5927\u4e8e 1 \u7684\u6700\u5c0f Number \u4e4b\u95f4\u7684\u5dee\u522b\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number.MIN_SAFE_INTEGER<\/code><\/span>\uff1a\u8868\u793a\u5728 JavaScript\u4e2d\u6700\u5c0f\u7684\u5b89\u5168\u7684 integer \u578b\u6570\u5b57 (<\/span>-(2^53 - 1)<\/code><\/span>)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number.MAX_SAFE_INTEGER<\/code><\/span>\uff1a\u8868\u793a\u5728 JavaScript \u4e2d\u6700\u5927\u7684\u5b89\u5168\u6574\u6570\uff08<\/span>2^53 - 1<\/code><\/span>\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                • \n
                                                                                                                                                                  Number \u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                    \n
                                                                                                                                                                  • \n
                                                                                                                                                                    Number.isFinite(\u53c2\u6570)<\/code><\/span>\uff1a\u68c0\u6d4b\u6307\u5b9a\u53c2\u6570\u662f\u5426\u4e3a\u65e0\u7a77\u5927\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    Number.isInteger(\u53c2\u6570)<\/code><\/span>\uff1a\u68c0\u6d4b\u6307\u5b9a\u53c2\u6570\u662f\u5426\u4e3a\u6574\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    Number.isNaN(\u53c2\u6570)<\/code><\/span>\uff1a\u68c0\u6d4b\u6307\u5b9a\u53c2\u6570\u662f\u5426\u4e3a NaN\uff0c\u5373\uff08<\/span>\u4e0d\u662f\u4e00\u4e2a\u6570\u5b57<\/span><\/strong><\/span>\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    Number.isSafeInteger(\u53c2\u6570)<\/code><\/span>\uff1a\u68c0\u6d4b\u6307\u5b9a\u53c2\u6570\u662f\u5426\u4e3a\u5b89\u5168\u6574\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    NumberObject.toExponential(x)<\/code><\/span>\uff1a\u628a\u5bf9\u8c61\u7684\u503c\u8f6c\u6362\u4e3a\u6307\u6570\u8ba1\u6570\u6cd5\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    NumberObject.toFixed(x)<\/code><\/span>\uff1a\u628a\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u7ed3\u679c\u7684\u5c0f\u6570\u70b9\u540e\u6709\u6307\u5b9a\u4f4d\u6570\u7684\u6570\u5b57\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    Number.toLocaleString(locales, options)<\/code><\/span>\uff1a\u8fd4\u56de\u6570\u5b57\u5728\u7279\u5b9a\u8bed\u8a00\u73af\u5883\u4e0b\u7684\u8868\u793a\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    NumberObject.toPrecision(x)<\/code><\/span>\uff1a\u628a\u6570\u5b57\u683c\u5f0f\u5316\u4e3a\u6307\u5b9a\u7684\u957f\u5ea6\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    NumberObject.toString()<\/code><\/span>\uff1a\u628a\u6570\u5b57\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u4f7f\u7528\u6307\u5b9a\u7684\u57fa\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    NumberObject.valueOf()<\/code><\/span>\uff1a\u8fd4\u56de\u4e00\u4e2a Number \u5bf9\u8c61\u7684\u57fa\u672c\u6570\u5b57\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    Number.isInteger(\u53c2\u6570)<\/code><\/span>\uff1a\u7528\u6765\u5224\u65ad\u7ed9\u5b9a\u7684\u53c2\u6570\u662f\u5426\u4e3a\u6574\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                  • \n
                                                                                                                                                                    Number.isSafeInteger(\u53c2\u6570)<\/code><\/span>\uff1a\u5224\u65ad\u4f20\u5165\u7684\u53c2\u6570\u503c\u662f\u5426\u662f\u4e00\u4e2a”\u5b89\u5168\u6574\u6570”\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                    7.8 RegExp \u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                     RegExp \u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u63cf\u8ff0\u5b57\u7b26\u6a21\u5f0f\u7684\u5bf9\u8c61\u3002<\/span><\/p>\n
                                                                                                                                                                     \u6b63\u5219\u8868\u8fbe\u5f0f\u7528\u4e8e\u5bf9\u5b57\u7b26\u4e32\u6a21\u5f0f\u5339\u914d\u53ca\u68c0\u7d22\u66ff\u6362\uff0c\u662f\u5bf9\u5b57\u7b26\u4e32\u6267\u884c\u6a21\u5f0f\u5339\u914d\u7684\u5f3a\u5927\u5de5\u5177\u3002<\/span><\/p>\n
                                                                                                                                                                      \n
                                                                                                                                                                    • \n
                                                                                                                                                                      \u8bed\u6cd5<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                                                                      var<\/span> patt<\/span>=<\/span>new<\/span> RegExp<\/span>(pattern<\/span>,modifiers<\/span>);<\/span>\r\n\/\/ \u5f53\u4f7f\u7528\u6784\u9020\u51fd\u6570\u521b\u9020\u6b63\u5219\u5bf9\u8c61\u65f6\uff0c\u9700\u8981\u5e38\u89c4\u7684\u5b57\u7b26\u8f6c\u4e49\u89c4\u5219\uff08\u5728\u524d\u9762\u52a0\u53cd\u659c\u6760 \\\uff09\u3002<\/span><\/span>\r\n\u200b<\/span>\r\nvar<\/span> patt<\/span>=<\/span>\/pattern\/<\/span>modifiers<\/span>; \/\/ \u66f4\u7b80\u5355\u7684\u65b9\u5f0f<\/span><\/span>\r\n\/\/ pattern\uff08\u6a21\u5f0f\uff09 \u63cf\u8ff0\u4e86\u8868\u8fbe\u5f0f\u7684\u6a21\u5f0f<\/span><\/span>\r\n\/\/ modifiers(\u4fee\u9970\u7b26) \u7528\u4e8e\u6307\u5b9a\u5168\u5c40\u5339\u914d\u3001\u533a\u5206\u5927\u5c0f\u5199\u7684\u5339\u914d\u548c\u591a\u884c\u5339\u914d<\/span><\/span><\/pre>\n
                                                                                                                                                                        \n
                                                                                                                                                                      • \n
                                                                                                                                                                        RegEXp \u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                          \n
                                                                                                                                                                        • \n
                                                                                                                                                                          RegEXpObject.constructor<\/code><\/span>\uff1a\u8fd4\u56de\u4e00\u4e2a\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u662f\u4e00\u4e2a\u521b\u5efa RegExp \u5bf9\u8c61\u7684\u539f\u578b\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                        • \n
                                                                                                                                                                          RegExpObject.global<\/code><\/span>\uff1a\u5224\u65ad\u662f\u5426\u8bbe\u7f6e\u4e86 “g” \u4fee\u9970\u7b26\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                        • \n
                                                                                                                                                                          RegExpObject.ignoreCase<\/code><\/span>\uff1a\u5224\u65ad\u662f\u5426\u8bbe\u7f6e\u4e86 “i” \u4fee\u9970\u7b26\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                        • \n
                                                                                                                                                                          RegExpObject.lastIndex<\/code><\/span>\uff1a\u7528\u4e8e\u89c4\u5b9a\u4e0b\u6b21\u5339\u914d\u7684\u8d77\u59cb\u4f4d\u7f6e\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                        • \n
                                                                                                                                                                          RegExpObject.multiline<\/code><\/span>\uff1a\u5224\u65ad\u662f\u5426\u8bbe\u7f6e\u4e86 “m” \u4fee\u9970\u7b26\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                        • \n
                                                                                                                                                                          RegExpObject.source<\/code><\/span>\uff1a\u8fd4\u56de\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5339\u914d\u6a21\u5f0f\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                        • \n
                                                                                                                                                                          RegEXp \u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                            \n
                                                                                                                                                                          • \n
                                                                                                                                                                            RegExpObject.exec(string)<\/code><\/span>\uff1a\u68c0\u7d22\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u7684\u503c\u3002\u8fd4\u56de\u627e\u5230\u7684\u503c\uff0c\u5e76\u786e\u5b9a\u5176\u4f4d\u7f6e\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                          • \n
                                                                                                                                                                            RegExpObject.test(string)<\/code><\/span>\uff1a\u68c0\u7d22\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u7684\u503c\u3002\u8fd4\u56de true \u6216 false\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                          • \n
                                                                                                                                                                            RegExpObject.toString<\/code><\/span>\uff1a\u8fd4\u56de\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                          • \n
                                                                                                                                                                            \u4fee\u9970\u7b26<\/span><\/p>\n
                                                                                                                                                                            \u4fee\u9970\u7b26\u7528\u4e8e\u6267\u884c\u533a\u5206\u5927\u5c0f\u5199\u548c\u5168\u5c40\u5339\u914d\u3002<\/span><\/p>\n
                                                                                                                                                                            \n\n\n\n\n\n\n\n
                                                                                                                                                                            \u4fee\u9970\u7b26<\/span><\/span><\/th>\n\u63cf\u8ff0<\/span><\/span><\/th>\n<\/tr>\n<\/thead>\n
                                                                                                                                                                            i<\/span><\/span><\/td>\n\u6267\u884c\u5bf9\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u5339\u914d\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            g<\/span><\/span><\/td>\n\u6267\u884c\u5168\u5c40\u5339\u914d\uff08\u67e5\u627e\u6240\u6709\u5339\u914d\u800c\u975e\u5728\u627e\u5230\u7b2c\u4e00\u4e2a\u5339\u914d\u540e\u505c\u6b62\uff09\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            m<\/span><\/span><\/td>\n\u6267\u884c\u591a\u884c\u5339\u914d\u3002<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/li>\n
                                                                                                                                                                          • \n
                                                                                                                                                                            \u62ec\u53f7<\/span><\/p>\n
                                                                                                                                                                            \u62ec\u53f7\u7528\u4e8e\u67e5\u627e\u67d0\u4e2a\u8303\u56f4\u5185\u7684\u5b57\u7b26\u3002<\/span><\/p>\n
                                                                                                                                                                            \n\n\n\n\n\n\n\n\n\n\n\n\n\n
                                                                                                                                                                            \u8868\u8fbe\u5f0f<\/span><\/span><\/th>\n\u63cf\u8ff0<\/span><\/span><\/th>\n<\/tr>\n<\/thead>\n
                                                                                                                                                                            [abc]<\/span><\/span><\/td>\n\u67e5\u627e\u65b9\u62ec\u53f7\u4e4b\u95f4\u7684\u4efb\u4f55\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            [^abc]<\/span><\/span><\/td>\n\u67e5\u627e\u4efb\u4f55\u4e0d\u5728\u65b9\u62ec\u53f7\u4e4b\u95f4\u7684\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            [0-9]<\/span><\/span><\/td>\n\u67e5\u627e\u4efb\u4f55\u4ece 0 \u81f3 9 \u7684\u6570\u5b57\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            [a-z]<\/span><\/span><\/td>\n\u67e5\u627e\u4efb\u4f55\u4ece\u5c0f\u5199 a \u5230\u5c0f\u5199 z \u7684\u5b57\u7b26<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            [A-Z]<\/span><\/span><\/td>\n\u67e5\u627e\u4efb\u4f55\u4ece\u5927\u5199 A \u5230\u5927\u5199 Z \u7684\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            [A-z]<\/span><\/span><\/td>\n\u67e5\u627e\u4efb\u4f55\u4ece\u5927\u5199 A \u5230\u5c0f\u5199 z \u7684\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            [abrs]<\/span><\/span><\/td>\n\u67e5\u627e\u7ed9\u5b9a\u96c6\u5408\u5185\u7684\u4efb\u4f55\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            [^abrs]<\/span><\/span><\/td>\n\u67e5\u627e\u7ed9\u5b9a\u96c6\u5408\u5916\u7684\u4efb\u4f55\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \uff08r<\/span>|g<\/span>|b\uff09<\/span><\/span><\/td>\n\u67e5\u627e\u4efb\u4f55\u6307\u5b9a\u7684\u9009\u9879\u3002<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/li>\n
                                                                                                                                                                          • \n
                                                                                                                                                                            \u5143\u5b57\u7b26<\/span><\/p>\n
                                                                                                                                                                            \u5143\u5b57\u7b26\uff08Metacharacter\uff09\u662f\u62e5\u6709\u7279\u6b8a\u542b\u4e49\u7684\u5b57\u7b26\u3002<\/span><\/p>\n
                                                                                                                                                                            \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                                                                                                                                                                            \u5143\u5b57\u7b26<\/span><\/span><\/th>\n\u63cf\u8ff0<\/span><\/span><\/th>\n<\/tr>\n<\/thead>\n
                                                                                                                                                                            .<\/span><\/span><\/td>\n\u67e5\u627e\u5355\u4e2a\u5b57\u7b26\uff0c\u9664\u4e86\u6362\u884c\u548c\u884c\u7ed3\u675f\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\w<\/span><\/span><\/td>\n\u67e5\u627e\u6570\u5b57\u3001\u5b57\u6bcd\u53ca\u4e0b\u5212\u7ebf\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\W<\/span><\/span><\/td>\n\u67e5\u627e\u975e\u5355\u8bcd\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\d<\/span><\/span><\/td>\n\u67e5\u627e\u6570\u5b57\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\D<\/span><\/span><\/td>\n\u67e5\u627e\u975e\u6570\u5b57\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\s<\/span><\/span><\/td>\n\u67e5\u627e\u7a7a\u767d\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\S<\/span><\/span><\/td>\n\u67e5\u627e\u975e\u7a7a\u767d\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\b<\/span><\/span><\/td>\n\u5339\u914d\u5355\u8bcd\u8fb9\u754c\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\B<\/span><\/span><\/td>\n\u5339\u914d\u975e\u5355\u8bcd\u8fb9\u754c\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\0<\/span><\/span><\/td>\n\u67e5\u627e NULL \u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\n<\/span><\/span><\/td>\n\u67e5\u627e\u6362\u884c\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\f<\/span><\/span><\/td>\n\u67e5\u627e\u6362\u9875\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\r<\/span><\/span><\/td>\n\u67e5\u627e\u56de\u8f66\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\t<\/span><\/span><\/td>\n\u67e5\u627e\u5236\u8868\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\v<\/span><\/span><\/td>\n\u67e5\u627e\u5782\u76f4\u5236\u8868\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\xxx<\/span><\/span><\/td>\n\u67e5\u627e\u4ee5\u516b\u8fdb\u5236\u6570 xxx \u89c4\u5b9a\u7684\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\xdd<\/span><\/span><\/td>\n\u67e5\u627e\u4ee5\u5341\u516d\u8fdb\u5236\u6570 dd \u89c4\u5b9a\u7684\u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            \\uxxxx<\/span><\/span><\/td>\n\u67e5\u627e\u4ee5\u5341\u516d\u8fdb\u5236\u6570 xxxx \u89c4\u5b9a\u7684 Unicode \u5b57\u7b26\u3002<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/li>\n
                                                                                                                                                                          • \n
                                                                                                                                                                            \u91cf\u8bcd<\/span><\/p>\n
                                                                                                                                                                            \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
                                                                                                                                                                            \u91cf\u8bcd<\/span><\/span><\/th>\n\u63cf\u8ff0<\/span><\/span><\/th>\n<\/tr>\n<\/thead>\n
                                                                                                                                                                            n+<\/span><\/span><\/td>\n\u5339\u914d\u4efb\u4f55\u5305\u542b\u81f3\u5c11\u4e00\u4e2a n \u7684\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\/a+\/ \u5339\u914d “candy” \u4e2d\u7684 “a”\uff0c”caaaaaaandy” \u4e2d\u6240\u6709\u7684 “a”\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            n*<\/span><\/span><\/td>\n\u5339\u914d\u4efb\u4f55\u5305\u542b\u96f6\u4e2a\u6216\u591a\u4e2a n \u7684\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\/bo*\/ \u5339\u914d “A ghost booooed” \u4e2d\u7684 “boooo”\uff0c”A bird warbled” \u4e2d\u7684 “b”\uff0c\u4f46\u662f\u4e0d\u5339\u914d “A goat grunted”\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            n?<\/span><\/span><\/td>\n\u5339\u914d\u4efb\u4f55\u5305\u542b\u96f6\u4e2a\u6216\u4e00\u4e2a n \u7684\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\/e?le?\/ \u5339\u914d “angel” \u4e2d\u7684 “el”\uff0c”angle” \u4e2d\u7684 “le”\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            n{X}<\/span><\/span><\/td>\n\u5339\u914d\u5305\u542b X \u4e2a n \u7684\u5e8f\u5217\u7684\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\/a{2}\/ \u4e0d\u5339\u914d “candy,” \u4e2d\u7684 “a”\uff0c\u4f46\u662f\u5339\u914d “caandy,” \u4e2d\u7684\u4e24\u4e2a “a”\uff0c\u4e14\u5339\u914d “caaandy.” \u4e2d\u7684\u524d\u4e24\u4e2a “a”\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            n{X,}<\/span><\/span><\/td>\nX \u662f\u4e00\u4e2a\u6b63\u6574\u6570\u3002\u524d\u9762\u7684\u6a21\u5f0f n \u8fde\u7eed\u51fa\u73b0\u81f3\u5c11 X \u6b21\u65f6\u5339\u914d\u3002\u4f8b\u5982\uff0c\/a{2,}\/ \u4e0d\u5339\u914d “candy” \u4e2d\u7684 “a”\uff0c\u4f46\u662f\u5339\u914d “caandy” \u548c “caaaaaaandy.” \u4e2d\u6240\u6709\u7684 “a”\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            n{X,Y}<\/span><\/span><\/td>\nX \u548c Y \u4e3a\u6b63\u6574\u6570\u3002\u524d\u9762\u7684\u6a21\u5f0f n \u8fde\u7eed\u51fa\u73b0\u81f3\u5c11 X \u6b21\uff0c\u81f3\u591a Y \u6b21\u65f6\u5339\u914d\u3002\u4f8b\u5982\uff0c\/a{1,3}\/ \u4e0d\u5339\u914d “cndy”\uff0c\u5339\u914d “candy,” \u4e2d\u7684 “a”\uff0c”caandy,” \u4e2d\u7684\u4e24\u4e2a “a”\uff0c\u5339\u914d “caaaaaaandy” \u4e2d\u7684\u524d\u9762\u4e09\u4e2a “a”\u3002\u6ce8\u610f\uff0c\u5f53\u5339\u914d “caaaaaaandy” \u65f6\uff0c\u5373\u4f7f\u539f\u59cb\u5b57\u7b26\u4e32\u62e5\u6709\u66f4\u591a\u7684 “a”\uff0c\u5339\u914d\u9879\u4e5f\u662f “aaa”\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            n$<\/span><\/span><\/td>\n\u5339\u914d\u4efb\u4f55\u7ed3\u5c3e\u4e3a n \u7684\u5b57\u7b26\u4e32\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            ^n<\/span><\/span><\/td>\n\u5339\u914d\u4efb\u4f55\u5f00\u5934\u4e3a n \u7684\u5b57\u7b26\u4e32\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            ?=n<\/span><\/span><\/td>\n\u5339\u914d\u4efb\u4f55\u5176\u540e\u7d27\u63a5\u6307\u5b9a\u5b57\u7b26\u4e32 n \u7684\u5b57\u7b26\u4e32\u3002<\/span><\/span><\/td>\n<\/tr>\n
                                                                                                                                                                            ?!n<\/span><\/span><\/td>\n\u5339\u914d\u4efb\u4f55\u5176\u540e\u6ca1\u6709\u7d27\u63a5\u6307\u5b9a\u5b57\u7b26\u4e32 n \u7684\u5b57\u7b26\u4e32\u3002<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<\/li>\n<\/ul>\n
                                                                                                                                                                            7.9 Error \u9519\u8bef\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                             Error \u5bf9\u8c61\u5728\u9519\u8bef\u53d1\u751f\u65f6\u63d0\u4f9b\u4e86\u9519\u8bef\u7684\u63d0\u793a\u4fe1\u606f\u3002<\/span><\/p>\n
                                                                                                                                                                              \n
                                                                                                                                                                            • \n
                                                                                                                                                                              Error \u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                \n
                                                                                                                                                                              • \n
                                                                                                                                                                                ErrorObject.name<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u540d\u3002<\/span><\/p>\n
                                                                                                                                                                                  \n
                                                                                                                                                                                • \n
                                                                                                                                                                                  EvalError<\/code><\/span>\uff1a<\/span>eval()<\/code><\/span> \u51fd\u6570\u4ea7\u751f\u7684\u9519\u8bef\u3002<\/span><\/p>\n
                                                                                                                                                                                  \u6ce8\u610f: \u65b0\u7248\u7684 JavaScript \u4f7f\u7528 <\/span>SyntaxError<\/code><\/span> \u66ff\u4ee3 <\/span>EvalError<\/code><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                • \n
                                                                                                                                                                                  RangeError<\/code><\/span>\uff1a\u6570\u503c\u8d85\u51fa\u89c4\u5b9a\u7684\u8303\u56f4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                • \n
                                                                                                                                                                                  ReferenceError<\/code><\/span>\uff1a\u975e\u6cd5\u5f15\u7528\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                • \n
                                                                                                                                                                                  SyntaxError<\/code><\/span>\uff1a\u8bed\u6cd5\u9519\u8bef\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                • \n
                                                                                                                                                                                  TypeError<\/code><\/span>\uff1a\u7c7b\u578b\u9519\u8bef\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                • \n
                                                                                                                                                                                  URIError<\/code><\/span>\uff1a<\/span>encodeURI()<\/code><\/span> \u51fd\u6570\u4ea7\u751f\u7684\u9519\u8bef\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                • \n
                                                                                                                                                                                  ErrorObject.message<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u4fe1\u606f\uff08\u5b57\u7b26\u4e32\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                  7.10 \u5168\u5c40\u5c5e\u6027\u548c\u5168\u5c40\u51fd\u6570<\/span><\/h3>\n
                                                                                                                                                                                   JavaScript \u5168\u5c40\u5c5e\u6027\u548c\u51fd\u6570\u53ef\u7528\u4e8e\u521b\u5efa Javascript \u5bf9\u8c61\u3002<\/span><\/p>\n
                                                                                                                                                                                    \n
                                                                                                                                                                                  • \n
                                                                                                                                                                                    JavaScript \u5168\u5c40<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                      \n
                                                                                                                                                                                    • \n
                                                                                                                                                                                      Infinity<\/code><\/span>\uff1a\u4ee3\u8868\u6b63\u7684\u65e0\u7a77\u5927\u7684\u6570\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                    • \n
                                                                                                                                                                                      NaN<\/code><\/span>\uff1a\u6307\u793a\u67d0\u4e2a\u503c\u662f\u4e0d\u662f\u6570\u5b57\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                    • \n
                                                                                                                                                                                      undefined<\/code><\/span>\uff1a\u6307\u793a\u672a\u5b9a\u4e49\u7684\u503c\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                    • \n
                                                                                                                                                                                      JavaScript \u5168\u5c40<\/span>\u51fd\u6570<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                        \n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        encodeURI(\"uri\")<\/code><\/span>\uff1a\u628a\u5b57\u7b26\u4e32\u7f16\u7801\u4e3a URI\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        decodeURI(\"uri\")<\/code><\/span>\uff1a\u89e3\u7801\u67d0\u4e2a\u7f16\u7801\u7684 URI\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        encodeURIComponent(\"uri\")<\/code><\/span>\uff1a\u628a\u5b57\u7b26\u4e32\u7f16\u7801\u4e3a URI \u7ec4\u4ef6\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        decodeURIComponent(\"uri\")<\/code><\/span>\uff1a\u89e3\u7801\u4e00\u4e2a\u7f16\u7801\u7684 URI \u7ec4\u4ef6\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        escape(string)<\/code><\/span>\uff1a\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u7f16\u7801\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        unescape(string)<\/code><\/span>\uff1a\u5bf9\u7531 <\/span>escape()<\/code><\/span> \u7f16\u7801\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u89e3\u7801\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        eval(string)<\/code><\/span>\uff1a\u8ba1\u7b97 JavaScript \u5b57\u7b26\u4e32\uff0c\u5e76\u628a\u5b83\u4f5c\u4e3a\u811a\u672c\u4ee3\u7801\u6765\u6267\u884c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        isFinite(value)<\/code><\/span>\uff1a\u68c0\u67e5\u67d0\u4e2a\u503c\u662f\u5426\u4e3a\u6709\u7a77\u5927\u7684\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        isNaN(value)<\/code><\/span>\uff1a\u68c0\u67e5\u67d0\u4e2a\u503c\u662f\u5426\u662f\u6570\u5b57\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        Number(object)<\/code><\/span>\uff1a\u628a\u5bf9\u8c61\u7684\u503c\u8f6c\u6362\u4e3a\u6570\u5b57\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        String(object)<\/code><\/span>\uff1a\u628a\u5bf9\u8c61\u7684\u503c\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        parseFloat(string)<\/code><\/span>\uff1a\u89e3\u6790\u4e00\u4e2a\u5b57\u7b26\u4e32\u5e76\u8fd4\u56de\u4e00\u4e2a\u6d6e\u70b9\u6570\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                      • \n
                                                                                                                                                                                        parseInt(string,radix)<\/code><\/span>\uff1a\u89e3\u6790\u4e00\u4e2a\u5b57\u7b26\u4e32\u5e76\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\u3002<\/span><\/p>\n
                                                                                                                                                                                        radix<\/code><\/span> \u8868\u793a\u8981\u89e3\u6790\u7684\u6570\u5b57\u7684\u57fa\u6570\uff0c\u53d6\u503c\u4ecb\u4e8e 2 ~ 36 \u4e4b\u95f4\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                        \n
                                                                                                                                                                                        \n<\/div>\n
                                                                                                                                                                                        8 BOM \u6d4f\u89c8\u5668\u5bf9\u8c61<\/span><\/h2>\n
                                                                                                                                                                                        8.1 window \u9876\u5c42\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                                         window \u5bf9\u8c61\u662f BOM \u6d4f\u89c8\u5668\u5bf9\u8c61\u6a21\u578b\uff08<\/span>B<\/span><\/strong><\/span>rowser <\/span>O<\/span><\/strong><\/span>bject <\/span>M<\/span><\/strong><\/span>odel\uff09\u7684\u6838\u5fc3\uff0cwindow \u5bf9\u8c61\u662f\u6307\u5f53\u524d\u7684\u6d4f\u89c8\u5668\u7a97\u53e3\u3002<\/span><\/p>\n
                                                                                                                                                                                         window \u5bf9\u8c61\u65b9\u6cd5\u5982\u4e0b\uff1a<\/span><\/p>\n
                                                                                                                                                                                          \n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          alert(str);<\/code><\/span>\uff1a\u663e\u793a\u5e26\u6709\u4e00\u6bb5\u6d88\u606f\u548c\u4e00\u4e2a\u786e\u8ba4\u6309\u94ae\u7684\u8b66\u544a\u6846\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          confirm(str);<\/code><\/span>\uff1a\u663e\u793a\u5e26\u6709\u4e00\u6bb5\u6d88\u606f\u548c\u4e00\u4e2a\u786e\u8ba4\u6309\u94ae\u3001\u4e00\u4e2a\u53d6\u6d88\u6309\u94ae\u7684\u5bf9\u8bdd\u6846\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          prompt(str1,str2);<\/code><\/span>\uff1a\u663e\u793a\u53ef\u63d0\u793a\u7528\u6237\u8f93\u5165\u7684\u5bf9\u8bdd\u6846\uff0c\u5e26\u6709\u4e00\u6bb5\u6d88\u606f\uff0c\u4e00\u4e2a\u8f93\u5165\u6587\u672c\u6846\uff0c\u4e00\u4e2a\u786e\u8ba4\u6309\u94ae\uff0c\u4e00\u4e2a\u53d6\u6d88\u6309\u94ae\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          open();<\/code><\/span>\uff1a\u6253\u5f00\u4e00\u4e2a\u65b0\u7684\u6d4f\u89c8\u5668\u7a97\u53e3\u6216\u67e5\u627e\u4e00\u4e2a\u5df2\u547d\u540d\u7684\u7a97\u53e3\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          close();<\/code><\/span>\uff1a\u5173\u95ed\u6d4f\u89c8\u5668\u7a97\u53e3\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          print();<\/code><\/span>\uff1a\u6253\u5370\u5f53\u524d\u7a97\u53e3\u7684\u5185\u5bb9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          focus();<\/code><\/span>\uff1a\u628a\u952e\u76d8\u7126\u70b9\u7ed9\u4e88\u6709\u4e00\u4e2a\u7a97\u53e3\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          blur();<\/code><\/span>\uff1a\u628a\u952e\u76d8\u7126\u70b9\u4ece\u9876\u5c42\u7a97\u53e3\u79fb\u5f00\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          moveBy();<\/code><\/span>\uff1a\u53ef\u76f8\u5bf9\u7a97\u53e3\u7684\u5f53\u524d\u5750\u6807\uff0c\u628a\u7a97\u53e3\u79fb\u52a8\u5230\u6307\u5b9a\u7684\u50cf\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          moveTo();<\/code><\/span>\uff1a\u628a\u7a97\u53e3\u7684\u5de6\u4e0a\u89d2\u79fb\u52a8\u5230\u6307\u5b9a\u7684\u5750\u6807\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          resizeBy();<\/code><\/span>\uff1a\u6309\u7167\u6307\u5b9a\u7684\u50cf\u7d20\u8c03\u6574\u7a97\u53e3\u7684\u5927\u5c0f\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          resizeTo();<\/code><\/span>\uff1a\u628a\u7a97\u53e3\u7684\u5927\u5c0f\u8c03\u6574\u5230\u6307\u5b9a\u7684\u5bbd\u5ea6\u548c\u9ad8\u5ea6\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          scrollBy();<\/code><\/span>\uff1a\u6309\u7167\u6307\u5b9a\u7684\u50cf\u7d20\u503c\u6765\u6eda\u52a8\u5185\u5bb9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                        • \n
                                                                                                                                                                                          scrollTo();<\/code><\/span>\uff1a\u628a\u5185\u5bb9\u6eda\u52a8\u5230\u6307\u5b9a\u7684\u5750\u6807\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                          8.2 history \u5b50\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                                           history \u5bf9\u8c61\u7528\u4e8e\u5386\u53f2\u8bb0\u5f55\u7ba1\u7406\uff0c\u8be5\u5bf9\u8c61\u8bb0\u5f55\u4e86\u7528\u6237\u66fe\u7ecf\u6d4f\u89c8\u8fc7\u7684\u9875\u9762(URL)\uff0c\u5e76\u53ef\u4ee5\u5b9e\u73b0\u6d4f\u89c8\u5668\u524d\u8fdb\u4e0e\u540e\u9000\u76f8\u4f3c\u5bfc\u822a\u7684\u529f\u80fd\u3002<\/span><\/p>\n
                                                                                                                                                                                           \u4ece<\/span>\u7a97\u53e3<\/span><\/strong><\/span>\u88ab\u6253\u5f00\u7684\u90a3\u4e00\u523b\u5f00\u59cb\u8bb0\u5f55\uff0c\u6bcf\u4e2a\u6d4f\u89c8\u5668\u7a97\u53e3\u3001\u6bcf\u4e2a\u6807\u7b7e\u9875\u4e43\u81f3\u6bcf\u4e2a\u6846\u67b6\uff0c\u90fd\u6709\u81ea\u5df1\u7684 history \u5bf9\u8c61\u4e0e\u7279\u5b9a\u7684 window \u5bf9\u8c61\u5173\u8054\u3002<\/span><\/p>\n
                                                                                                                                                                                            \n
                                                                                                                                                                                          • \n
                                                                                                                                                                                            history \u5bf9\u8c61\u8bed\u6cd5\uff1a<\/span>window.history.[\u5c5e\u6027|\u65b9\u6cd5]<\/code><\/span> (window \u53ef\u4ee5\u7701\u7565)<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                          • \n
                                                                                                                                                                                            history \u5bf9\u8c61\u5c5e\u6027\uff1a<\/span><\/p>\n
                                                                                                                                                                                              \n
                                                                                                                                                                                            • \n
                                                                                                                                                                                              history.length<\/code><\/span>\uff1a\u8fd4\u56de\u6d4f\u89c8\u5668\u5386\u53f2\u5217\u8868\u4e2d\u7684 URL \u6570\u91cf\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                            • \n
                                                                                                                                                                                              history \u5bf9\u8c61\u65b9\u6cd5\uff1a<\/span><\/p>\n
                                                                                                                                                                                                \n
                                                                                                                                                                                              • \n
                                                                                                                                                                                                history.back();<\/code><\/span>\uff1a\u52a0\u8f7d history \u5217\u8868\u4e2d\u7684\u524d\u4e00\u4e2a URL\u3002\u7b49\u540c\u4e8e\u70b9\u51fb\u6d4f\u89c8\u5668\u7684<\/span>\u5012\u9000<\/span><\/strong><\/span>\u6309\u94ae\u3002<\/span><\/p>\n
                                                                                                                                                                                                history.back();<\/code><\/span> \u76f8\u5f53\u4e8e <\/span>window.history.go(-1);<\/code><\/span><\/p>\n<\/li>\n
                                                                                                                                                                                              • \n
                                                                                                                                                                                                history.forward();<\/code><\/span>\uff1a\u52a0\u8f7d history \u5217\u8868\u4e2d\u7684\u4e0b\u4e00\u4e2a URL\u3002\u7b49\u540c\u4e8e\u70b9\u51fb\u6d4f\u89c8\u5668\u7684<\/span>\u524d\u8fdb<\/span><\/strong><\/span>\u6309\u94ae\u3002<\/span><\/p>\n
                                                                                                                                                                                                history.back();<\/code><\/span> \u76f8\u5f53\u4e8e <\/span>window.history.go(1);<\/code><\/span><\/p>\n<\/li>\n
                                                                                                                                                                                              • \n
                                                                                                                                                                                                history.go(number);<\/code><\/span>\uff1a\u52a0\u8f7d history \u5217\u8868\u4e2d\u7684\u67d0\u4e2a\u5177\u4f53\u7684\u9875\u9762\u3002<\/span><\/p>\n
                                                                                                                                                                                                number<\/span><\/strong><\/span>\u8bbe\u7f6e\u4e3a <\/span>1<\/span><\/strong><\/span>\uff1a\u8868\u793a\u524d\u4e00\u4e2a\u9875\u9762\uff0c<\/span>go(1);<\/code><\/span> \u7b49\u4ef7 <\/span>forward();<\/code><\/span><\/p>\n
                                                                                                                                                                                                number<\/span><\/strong><\/span>\u8bbe\u7f6e\u4e3a <\/span>0<\/span><\/strong><\/span>\uff1a\u8868\u793a\u5f53\u524d\u9875\u9762\u3002<\/span><\/p>\n
                                                                                                                                                                                                number<\/span><\/strong><\/span>\u8bbe\u7f6e\u4e3a <\/span>-1<\/span><\/strong><\/span>\uff1a\u8868\u793a\u540e\u4e00\u4e2a\u9875\u9762\uff0c<\/span>go(-1);<\/code><\/span> \u7b49\u4ef7 <\/span>back();<\/code><\/span><\/p>\n
                                                                                                                                                                                                number<\/span><\/strong><\/span>\u8bbe\u7f6e\u4e3a<\/span>\u5176\u5b83\u6570\u503c<\/span><\/strong><\/span>\uff1a\u8868\u793a\u8981\u8bbf\u95ee\u7684 URL \u5728 history \u7684 URL \u5217\u8868\u4e2d\u7684\u76f8\u5bf9\u4f4d\u7f6e\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                8.3 location \u5b50\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                                                 location \u7528\u4e8e URL \u64cd\u4f5c\uff0c\u53ef\u83b7\u53d6\u6216\u8bbe\u7f6e\u7a97\u4f53\u7684 URL\uff0c\u5e76\u4e14\u53ef\u4ee5\u7528\u4e8e\u89e3\u6790 URL\u3002<\/span><\/p>\n
                                                                                                                                                                                                \/\/ Location \u5bf9\u8c61\u7684\u5404\u90e8\u5206\u5c5e\u6027\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/span><\/span>\r\n\/\/ href \u00a0 \u00a0 : http:\/\/www.dioit.com:8080\/index.php?id1=1&id2=2#id3<\/span><\/span>\r\n\/\/ protocol : http:<\/span><\/span>\r\n\/\/ host \u00a0 \u00a0 : www.dioit.com:8080<\/span><\/span>\r\n\/\/ hostname : www.dioit.com<\/span><\/span>\r\n\/\/ port \u00a0 \u00a0 : 8080<\/span><\/span>\r\n\/\/ pathname : index.php<\/span><\/span>\r\n\/\/ search \u00a0 : id1=1&id2=2<\/span><\/span>\r\n\/\/ hash \u00a0 \u00a0 : id3<\/span><\/span><\/pre>\n
                                                                                                                                                                                                  \n
                                                                                                                                                                                                • \n
                                                                                                                                                                                                  location \u5bf9\u8c61\u8bed\u6cd5\uff1a<\/span>window.location.[\u5c5e\u6027|\u65b9\u6cd5]<\/code><\/span> (window \u53ef\u4ee5\u7701\u7565)<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                • \n
                                                                                                                                                                                                  location \u5bf9\u8c61\u5c5e\u6027\uff1a<\/span><\/p>\n
                                                                                                                                                                                                    \n
                                                                                                                                                                                                  • \n
                                                                                                                                                                                                    location.href<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de<\/span>\u5b8c\u6574<\/span><\/strong><\/span>\u7684 URL\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                  • \n
                                                                                                                                                                                                    location.protocol<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5f53\u524d URL \u7684<\/span>\u534f\u8bae<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                  • \n
                                                                                                                                                                                                    location.host<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5f53\u524d URL \u7684<\/span>\u4e3b\u673a\u540d<\/span><\/strong><\/span>\u548c<\/span>\u7aef\u53e3\u53f7<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                  • \n
                                                                                                                                                                                                    location.hostname<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5f53\u524d URL \u7684<\/span>\u4e3b\u673a\u540d<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                  • \n
                                                                                                                                                                                                    location.port<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5f53\u524d URL \u7684<\/span>\u7aef\u53e3\u53f7<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                  • \n
                                                                                                                                                                                                    location.pathname<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5f53\u524d URL \u7684<\/span>\u8def\u5f84<\/span><\/strong><\/span>\u90e8\u5206\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                  • \n
                                                                                                                                                                                                    location.search<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u4ece\uff08\u95ee\u53f7<\/span>?<\/code><\/span>\uff09\u5f00\u59cb\u7684 URL (<\/span>\u67e5\u8be2\u90e8\u5206<\/span><\/strong><\/span>)\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                  • \n
                                                                                                                                                                                                    location.hash<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u4ece\uff08\u4e95\u53f7<\/span>#<\/code><\/span>\uff09\u5f00\u59cb\u7684 URL \uff08<\/span>\u951a<\/span><\/strong><\/span>\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                  • \n
                                                                                                                                                                                                    location \u5bf9\u8c61\u65b9\u6cd5\uff1a<\/span><\/p>\n
                                                                                                                                                                                                      \n
                                                                                                                                                                                                    • \n
                                                                                                                                                                                                      location.assign();<\/code><\/span>\uff1a\u52a0\u8f7d\u65b0\u7684\u6587\u6863\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                    • \n
                                                                                                                                                                                                      location.reload();<\/code><\/span>\uff1a\u91cd\u65b0\u52a0\u8f7d\u5f53\u524d\u6587\u6863\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                    • \n
                                                                                                                                                                                                      location.replace();<\/code><\/span>\uff1a\u7528\u65b0\u7684\u6587\u6863\u66ff\u6362\u5f53\u524d\u6587\u6863\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                      8.4 navigator \u5b50\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                                                       navigator \u5bf9\u8c61\u5305\u542b\u6709\u5173\u6d4f\u89c8\u5668\u7684\u4fe1\u606f\uff0c\u7528\u4e8e\u6d4f\u89c8\u5668\u4fe1\u606f\u68c0\u6d4b\uff0c\u68c0\u6d4b\u6d4f\u89c8\u5668\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u7684\u7248\u672c\u3002<\/span><\/p>\n
                                                                                                                                                                                                        \n
                                                                                                                                                                                                      • \n
                                                                                                                                                                                                        navigator \u5bf9\u8c61\u8bed\u6cd5\uff1a<\/span>window.navigator.[\u5c5e\u6027]<\/code><\/span> (window \u53ef\u4ee5\u7701\u7565)<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                      • \n
                                                                                                                                                                                                        navigator \u5bf9\u8c61\u5c5e\u6027\uff1a<\/span><\/p>\n
                                                                                                                                                                                                          \n
                                                                                                                                                                                                        • \n
                                                                                                                                                                                                          navigator.appCodeName<\/code><\/span>\uff1a\u6d4f\u89c8\u5668\u4ee3\u7801\u540d\u7684\u5b57\u7b26\u4e32\u8868\u793a\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                        • \n
                                                                                                                                                                                                          navigator.appName<\/code><\/span>\uff1a\u8fd4\u56de\u6d4f\u89c8\u5668\u7684\u540d\u79f0\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                        • \n
                                                                                                                                                                                                          navigator.appVersion<\/code><\/span>\uff1a\u8fd4\u56de\u6d4f\u89c8\u5668\u7684\u5e73\u53f0\u548c\u7248\u672c\u4fe1\u606f\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                        • \n
                                                                                                                                                                                                          navigator.platform<\/code><\/span>\uff1a\u8fd4\u56de\u8fd0\u884c\u6d4f\u89c8\u5668\u7684\u64cd\u4f5c\u7cfb\u7edf\u5e73\u53f0\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                        • \n
                                                                                                                                                                                                          navigator.userAgent<\/code><\/span>\uff1a\u8fd4\u56de\u7531\u5ba2\u6237\u673a\u53d1\u9001\u670d\u52a1\u5668\u7684 user-agent \u5934\u90e8\u7684\u503c\u3002<\/span><\/p>\n
                                                                                                                                                                                                          userAgent \u662f\u8fd4\u56de\u7528\u6237\u4ee3\u7406\u5934\u7684\u5b57\u7b26\u4e32\u8868\u793a\uff08\u5305\u62ec\u6d4f\u89c8\u5668\u7248\u672c\u4fe1\u606f\u7b49\u7684\u5b57\u7b26\u4e32\uff09\u3002<\/span><\/p>\n
                                                                                                                                                                                                          \u53ef\u4f7f\u7528 <\/span>navigator.userAgent<\/code><\/span> \u5224\u65ad\u4f7f\u7528\u7684\u662f\u4ec0\u4e48\u6d4f\u89c8\u5668\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                          8.5 screen \u5b50\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                                                           screen \u5bf9\u8c61\u7528\u4e8e\u5c4f\u5e55\u53c2\u6570\u83b7\u53d6\uff0c\u53ef\u83b7\u53d6\u7528\u6237\u7684\u5c4f\u5e55\u4fe1\u606f\u3002<\/span><\/p>\n
                                                                                                                                                                                                            \n
                                                                                                                                                                                                          • \n
                                                                                                                                                                                                            screen \u5bf9\u8c61\u8bed\u6cd5\uff1a<\/span>window.screen.[\u5c5e\u6027]<\/code><\/span> (window \u53ef\u4ee5\u7701\u7565)<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                          • \n
                                                                                                                                                                                                            screen \u5bf9\u8c61\u5c5e\u6027\uff1a<\/span><\/p>\n
                                                                                                                                                                                                              \n
                                                                                                                                                                                                            • \n
                                                                                                                                                                                                              screen.availHeight<\/code><\/span>\uff1a\u8fd4\u56de\u8bbf\u95ee\u8005\u5c4f\u5e55\u7a97\u53e3\u53ef\u4ee5\u4f7f\u7528\u7684\u9ad8\u5ea6\uff0c\u5355\u4f4d\uff08\u50cf\u7d20\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                            • \n
                                                                                                                                                                                                              screen.availWidth<\/code><\/span>\uff1a\u8fd4\u56de\u8bbf\u95ee\u8005\u5c4f\u5e55\u7a97\u53e3\u53ef\u4ee5\u4f7f\u7528\u7684\u5bbd\u5ea6\uff0c\u5355\u4f4d\uff08\u50cf\u7d20\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                            • \n
                                                                                                                                                                                                              screen.colorDepth<\/code><\/span>\uff1a\u7528\u6237\u6d4f\u89c8\u5668\u8868\u793a\u7684\u989c\u8272\u4f4d\u6570\uff0c\u901a\u5e38\u4e3a 32 \u4f4d\uff08\u6bcf\u50cf\u7d20\u7684\u4f4d\u6570\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                            • \n
                                                                                                                                                                                                              screen.pixelDepth<\/code><\/span>\uff1a\u7528\u6237\u6d4f\u89c8\u5668\u8868\u793a\u7684\u989c\u8272\u4f4d\u6570\uff0c\u901a\u5e38\u4e3a 32 \u4f4d\uff08\u6bcf\u50cf\u7d20\u7684\u4f4d\u6570\uff09\uff08IE \u4e0d\u652f\u6301\u6b64\u5c5e\u6027\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                            • \n
                                                                                                                                                                                                              screen.height<\/code><\/span>\uff1a\u8fd4\u56de\u5c4f\u5e55\u5206\u8fa8\u7387\u7684\u9ad8\u5ea6\uff0c\u5355\u4f4d\uff08\u50cf\u7d20\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                            • \n
                                                                                                                                                                                                              screen.width<\/code><\/span>\uff1a\u8fd4\u56de\u5c4f\u5e55\u5206\u8fa8\u7387\u7684\u5bbd\u5ea6\uff0c\u5355\u4f4d\uff08\u50cf\u7d20\uff09\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                              8.6 Storage \u5b50\u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                                                               Web \u5b58\u50a8 API \u63d0\u4f9b\u4e86 localStorage\uff08\u672c\u5730\u5b58\u50a8\uff09\u548c sessionStorage \uff08\u4f1a\u8bdd\u5b58\u50a8\uff09\u4e24\u4e2a\u5b58\u50a8\u5bf9\u8c61\u6765\u5bf9\u7f51\u9875\u7684\u6570\u636e\u8fdb\u884c\u6dfb\u52a0\u3001\u5220\u9664\u3001\u4fee\u6539\u3001\u67e5\u8be2\u64cd\u4f5c\u3002<\/span><\/p>\n
                                                                                                                                                                                                                \n
                                                                                                                                                                                                              • \n
                                                                                                                                                                                                                Storage \u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                                                  \n
                                                                                                                                                                                                                • \n
                                                                                                                                                                                                                  length<\/code><\/span>\uff1a\u8fd4\u56de\u5b58\u50a8\u5bf9\u8c61\u4e2d\u5305\u542b\u591a\u5c11\u6761\u6570\u636e\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                • \n
                                                                                                                                                                                                                  Storage \u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                                                    \n
                                                                                                                                                                                                                  • \n
                                                                                                                                                                                                                    key(n)<\/code><\/span>\uff1a\u8fd4\u56de\u5b58\u50a8\u5bf9\u8c61\u4e2d\u7b2c n \u4e2a\u952e\u7684\u540d\u79f0\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                  • \n
                                                                                                                                                                                                                    getItem(keyname)<\/code><\/span>\uff1a\u8fd4\u56de\u6307\u5b9a\u952e\u7684\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                  • \n
                                                                                                                                                                                                                    setItem(keyname, value)<\/code><\/span>\uff1a\u6dfb\u52a0\u952e\u548c\u503c\uff0c\u5982\u679c\u5bf9\u5e94\u7684\u503c\u5b58\u5728\uff0c\u5219\u66f4\u65b0\u8be5\u952e\u5bf9\u5e94\u7684\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                  • \n
                                                                                                                                                                                                                    removeItem(keyname)<\/code><\/span>\uff1a\u79fb\u9664\u952e\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                  • \n
                                                                                                                                                                                                                    clear()<\/code><\/span>\uff1a\u6e05\u9664\u5b58\u50a8\u5bf9\u8c61\u4e2d\u6240\u6709\u7684\u952e\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                  • \n
                                                                                                                                                                                                                    Web \u5b58\u50a8 <\/span>API<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                                                      \n
                                                                                                                                                                                                                    • \n
                                                                                                                                                                                                                      window.localStorage<\/code><\/span>\uff1a\u5728\u6d4f\u89c8\u5668\u4e2d\u5b58\u50a8 <\/span>key\/value<\/code><\/span> \u5bf9\u3002\u7528\u4e8e\u957f\u4e45\u4fdd\u5b58\u6574\u4e2a\u7f51\u7ad9\u7684\u6570\u636e\uff0c\u4fdd\u5b58\u7684\u6570\u636e\u6ca1\u6709\u8fc7\u671f\u65f6\u95f4\uff0c\u76f4\u5230\u624b\u52a8\u53bb\u9664\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                    • \n
                                                                                                                                                                                                                      window.sessionStorage<\/code><\/span>\uff1a\u5728\u6d4f\u89c8\u5668\u4e2d\u5b58\u50a8 <\/span>key\/value<\/code><\/span> \u5bf9\u3002 \u7528\u4e8e\u4e34\u65f6\u4fdd\u5b58\u540c\u4e00\u7a97\u53e3(\u6216\u6807\u7b7e\u9875)\u7684\u6570\u636e\uff0c\u5728\u5173\u95ed\u7a97\u53e3\u6216\u6807\u7b7e\u9875\u4e4b\u540e\u5c06\u4f1a\u5220\u9664\u8fd9\u4e9b\u6570\u636e\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                                      8.7 document \u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                                                                       document \u5bf9\u8c61\u662f window \u5bf9\u8c61\u7684\u4e00\u90e8\u5206\uff0c\u53ef\u901a\u8fc7 <\/span>window.document<\/code><\/span> \u5bf9\u5176\u8fdb\u884c\u8bbf\u95ee\u3002\u5f53\u6d4f\u89c8\u5668\u8f7d\u5165 HTML \u6587\u6863\uff0cHTML \u6587\u6863\u5c31\u4f1a\u6210\u4e3a <\/span>Document \u5bf9\u8c61<\/span><\/strong><\/span>\u3002Document \u5bf9\u8c61\u662f HTML \u6587\u6863\u7684\u6839\u8282\u70b9\u3002Document \u5bf9\u8c61\u4f7f\u6211\u4eec\u53ef\u4ee5\u4ece\u811a\u672c\u4e2d\u5bf9 HTML \u9875\u9762\u4e2d\u7684\u6240\u6709\u5143\u7d20\u8fdb\u884c\u8bbf\u95ee\u3002<\/span><\/p>\n
                                                                                                                                                                                                                        \n
                                                                                                                                                                                                                      • \n
                                                                                                                                                                                                                        document \u5bf9\u8c61\u8bed\u6cd5\uff1a<\/span>window.document.[\u5c5e\u6027|\u65b9\u6cd5]<\/code><\/span> (window \u53ef\u4ee5\u7701\u7565)<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                      • \n
                                                                                                                                                                                                                        document \u5bf9\u8c61\u5c5e\u6027\uff1a<\/span><\/p>\n
                                                                                                                                                                                                                          \n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.activeElement<\/code><\/span>\uff1a\u8fd4\u56de\u5f53\u524d<\/span>\u83b7\u53d6\u7126\u70b9\u7684\u5143\u7d20<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.anchors<\/code><\/span>\uff1a\u8fd4\u56de\u5bf9\u6587\u6863\u4e2d\u6240\u6709 <\/span>Anchor \u5bf9\u8c61\u7684\u5f15\u7528<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.baseURI<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863\u7684<\/span>\u7edd\u5bf9\u57fa\u7840 URI<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.body<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863\u7684 <\/span>body \u5143\u7d20<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.cookie<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u4e0e\u5f53\u524d\u6587\u6863<\/span>\u6709\u5173\u7684\u6240\u6709 cookie<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.doctype<\/code><\/span>\uff1a\u8fd4\u56de\u4e0e\u6587\u6863\u76f8\u5173\u7684<\/span>\u6587\u6863\u7c7b\u578b\u58f0\u660e DTD<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.documentElement<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863\u7684<\/span>\u6839\u8282\u70b9<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.documentMode<\/code><\/span>\uff1a\u8fd4\u56de\u7528\u4e8e\u901a\u8fc7\u6d4f\u89c8\u5668<\/span>\u6e32\u67d3\u6587\u6863\u7684\u6a21\u5f0f<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.documentURI<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u6587\u6863\u7684<\/span>\u4f4d\u7f6e<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.domain<\/code><\/span>\uff1a\u8fd4\u56de\u5f53\u524d\u6587\u6863\u7684<\/span>\u57df\u540d<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.embeds<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863\u4e2d\u6240\u6709<\/span>\u5d4c\u5165\u7684\u5185\u5bb9\uff08embed\uff09\u96c6\u5408<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.forms<\/code><\/span>\uff1a\u8fd4\u56de\u5bf9\u6587\u6863\u4e2d\u6240\u6709 <\/span>Form \u5bf9\u8c61\u5f15\u7528<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.images<\/code><\/span>\uff1a\u8fd4\u56de\u5bf9\u6587\u6863\u4e2d\u6240\u6709 <\/span>Image \u5bf9\u8c61\u5f15\u7528<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.implementation<\/code><\/span>\uff1a\u8fd4\u56de\u5904\u7406\u8be5\u6587\u6863\u7684 DOM <\/span>Implementation \u5bf9\u8c61<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.inputEncoding<\/code><\/span>\uff1a\u8fd4\u56de\u7528\u4e8e\u6587\u6863\u7684<\/span>\u7f16\u7801\u65b9\u5f0f\uff08\u5728\u89e3\u6790\u65f6\uff09<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.lastModified<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863\u88ab<\/span>\u6700\u540e\u4fee\u6539\u7684\u65e5\u671f\u548c\u65f6\u95f4<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.links<\/code><\/span>\uff1a\u8fd4\u56de\u5bf9\u6587\u6863\u4e2d\u6240\u6709 Area \u548c <\/span>Link \u5bf9\u8c61\u5f15\u7528<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.readyState<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863<\/span>\u72b6\u6001 (\u8f7d\u5165\u4e2d\u2026\u2026)<\/span><\/strong><\/span>.<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.referrer<\/code><\/span>\uff1a\u8fd4\u56de\u8f7d\u5165\u5f53\u524d<\/span>\u6587\u6863\u7684 URL<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.scripts<\/code><\/span>\uff1a\u8fd4\u56de\u9875\u9762\u4e2d<\/span>\u6240\u6709\u811a\u672c\u7684\u96c6\u5408<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.strictErrorChecking<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u662f\u5426<\/span>\u5f3a\u5236\u8fdb\u884c\u9519\u8bef\u68c0\u67e5<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.title<\/code><\/span>\uff1a\u8fd4\u56de\u5f53\u524d\u6587\u6863\u7684<\/span>\u6807\u9898<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document.URL<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863<\/span>\u5b8c\u6574\u7684 URL<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                          document \u5bf9\u8c61\u65b9\u6cd5\uff1a<\/span><\/p>\n
                                                                                                                                                                                                                            \n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.getElementById(id\u5c5e\u6027\u503c);<\/code><\/span>\uff1a\u8fd4\u56de\u5bf9\u62e5\u6709<\/span>\u552f\u4e00 id \u5c5e\u6027<\/span><\/strong><\/span> \u7684\u7b2c\u4e00\u4e2a\u5bf9\u8c61\u7684\u5f15\u7528\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.getElementsByName(name\u5c5e\u6027\u503c);<\/code><\/span>\uff1a\u8fd4\u56de\u5e26\u6709<\/span>\u6307\u5b9a\u540d\u79f0\u5c5e\u6027<\/span><\/strong><\/span>\u7684\u8282\u70b9\u5bf9\u8c61\u96c6\u5408\uff08\u548c\u6570\u7ec4\u7c7b\u4f3c\uff0c\u6709 <\/span>length<\/code><\/span> \u5c5e\u6027\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.getElementsByClassName(class\u5c5e\u6027\u503c);<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863\u4e2d\u6240\u6709<\/span>\u6307\u5b9a\u7c7b\u540d\u5c5e\u6027<\/span><\/strong><\/span>\u7684\u5143\u7d20\u96c6\u5408\uff0c\u4f5c\u4e3a NodeList \u5bf9\u8c61\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.getElementsByTagName(\u6807\u7b7e\u540d);<\/code><\/span>\uff1a\u8fd4\u56de\u5e26\u6709<\/span>\u6307\u5b9a\u6807\u7b7e\u540d\u79f0<\/span><\/strong><\/span>\u7684\u8282\u70b9\u5bf9\u8c61\u96c6\u5408\uff08\u548c\u6570\u7ec4\u7c7b\u4f3c\uff0c\u6709 <\/span>length<\/code><\/span> \u5c5e\u6027\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.write();<\/code><\/span>\uff1a\u5411\u6587\u6863\u5199 HTML \u8868\u8fbe\u5f0f \u6216 JavaScript \u4ee3\u7801\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.writeln();<\/code><\/span>\uff1a\u7b49\u540c\u4e8e write() \u65b9\u6cd5\uff0c\u4e0d\u540c\u7684\u662f\u5728\u6bcf\u4e2a\u8868\u8fbe\u5f0f\u4e4b\u540e\u5199\u4e00\u4e2a\u6362\u884c\u7b26\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.open();<\/code><\/span>\uff1a\u6253\u5f00\u4e00\u4e2a\u6d41\uff0c\u4ee5\u6536\u96c6\u6765\u81ea\u4efb\u4f55 <\/span>document.write();<\/code><\/span> \u6216 <\/span>document.writeln();<\/code><\/span> \u65b9\u6cd5\u7684\u8f93\u51fa\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.close();<\/code><\/span>\uff1a\u5173\u95ed\u7528 <\/span>document.open();<\/code><\/span> \u65b9\u6cd5\u6253\u5f00\u7684\u8f93\u51fa\u6d41\uff0c\u5e76\u663e\u793a\u9009\u5b9a\u7684\u6570\u636e\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.createElement(\"tagName\");<\/code><\/span>\uff1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684<\/span>\u5143\u7d20<\/span><\/strong><\/span>\u8282\u70b9\u3002<\/span><\/p>\n
                                                                                                                                                                                                                            \"tagName\"<\/code><\/span>\uff1a\u5b57\u7b26\u4e32\u503c\uff0c\u8fd9\u4e2a\u5b57\u7b26\u4e32\u7528\u6765\u6307\u660e\u521b\u5efa\u5143\u7d20\u7684\u7c7b\u578b\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.createAttribute();<\/code><\/span>\uff1a\u521b\u5efa\u4e00\u4e2a\u5c5e\u6027\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.createTextNode(\"\u7ed9\u5b9a\u6587\u672c\");<\/code><\/span>\uff1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684<\/span>\u6587\u672c<\/span><\/strong><\/span>\u8282\u70b9\uff08\u5305\u542b<\/span>\u7ed9\u5b9a\u6587\u672c<\/span><\/strong><\/span>\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.createComment();<\/code><\/span>\uff1a\u521b\u5efa\u6ce8\u91ca\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.createDocumentFragment();<\/code><\/span>\uff1a\u521b\u5efa\u7a7a\u7684 DocumentFragment \u5bf9\u8c61\uff0c\u5e76\u8fd4\u56de\u6b64\u5bf9\u8c61\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.renameNode();<\/code><\/span>\uff1a\u91cd\u547d\u540d\u5143\u7d20\u6216\u8005\u5c5e\u6027\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.normalize();<\/code><\/span>\uff1a\u5220\u9664\u7a7a\u6587\u672c\u8282\u70b9\uff0c\u5e76\u8fde\u63a5\u76f8\u90bb\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.normalizeDocument();<\/code><\/span>\uff1a\u5220\u9664\u7a7a\u6587\u672c\u8282\u70b9\uff0c\u5e76\u8fde\u63a5\u76f8\u90bb\u8282\u70b9\u7684\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.addEventListener();<\/code><\/span>\uff1a\u5411\u6587\u6863\u6dfb\u52a0\u53e5\u67c4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.removeEventListener();<\/code><\/span>\uff1a\u79fb\u9664\u6587\u6863\u4e2d\uff08\u7531 <\/span>addEventListener();<\/code><\/span> \u6dfb\u52a0\uff09\u7684\u4e8b\u4ef6\u53e5\u67c4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.adoptNode(node);<\/code><\/span>\uff1a\u4ece\u53e6\u5916\u4e00\u4e2a\u6587\u6863\u8fd4\u56de adapded \u8282\u70b9\u5230\u5f53\u524d\u6587\u6863\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.importNode();<\/code><\/span>\uff1a\u628a\u4e00\u4e2a\u8282\u70b9\u4ece\u53e6\u4e00\u4e2a\u6587\u6863\u590d\u5236\u5230\u8be5\u6587\u6863\u4ee5\u4fbf\u5e94\u7528\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.querySelector();<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863\u4e2d\u5339\u914d\u6307\u5b9a\u7684CSS\u9009\u62e9\u5668\u7684\u7b2c\u4e00\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                            document.querySelectorAll();<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863\u4e2d\u5339\u914d\u7684CSS\u9009\u62e9\u5668\u7684\u6240\u6709\u5143\u7d20\u8282\u70b9\u5217\u8868\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                                            \n
                                                                                                                                                                                                                            \n<\/div>\n
                                                                                                                                                                                                                            9 DOM \u5bf9\u8c61<\/span><\/h2>\n
                                                                                                                                                                                                                            9.1 DOM \u4ecb\u7ecd<\/span><\/h3>\n
                                                                                                                                                                                                                             DOM \u662f<\/span>\u6587\u6863\u5bf9\u8c61\u6a21\u578b<\/span><\/strong><\/span>\uff08<\/span>D<\/span><\/strong><\/span>ocument <\/span>O<\/span><\/strong><\/span>bject <\/span>M<\/span><\/strong><\/span>odel\uff09\uff0c\u7528\u4e8e\u5b9a\u4e49\u8bbf\u95ee\u548c\u5904\u7406 HTML \u6587\u6863\u7684\u6807\u51c6\u65b9\u6cd5\u3002DOM \u5c06 HTML \u6587\u6863\u5448\u73b0\u4e3a\u5e26\u6709\u5143\u7d20\u3001\u5c5e\u6027\u548c\u6587\u672c\u7684\u6811\u7ed3\u6784\uff08<\/span>\u8282\u70b9\u6811<\/span><\/strong><\/span>\uff09\u3002<\/span><\/p>\n
                                                                                                                                                                                                                             HTML \u6587\u6863\u53ef\u4ee5\u8868\u793a\u4e3a\u7531<\/span>\u8282\u70b9<\/span><\/strong><\/span>\u6784\u6210\u7684<\/span>\u96c6\u5408<\/span><\/strong><\/span>\uff1a<\/span><\/p>\n
                                                                                                                                                                                                                              \n
                                                                                                                                                                                                                            • \n
                                                                                                                                                                                                                              \u6587\u6863<\/span><\/strong><\/span>\u8282\u70b9\uff1aHTML \u6587\u6863\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                            • \n
                                                                                                                                                                                                                              \u5143\u7d20<\/span><\/strong><\/span>\u8282\u70b9\uff1a<\/span><html><\/code><\/span>\u3001<\/span><body><\/code><\/span>\u3001<\/span><p><\/code><\/span> \u7b49\u5143\u7d20\u6807\u7b7e\uff0c\u90fd\u662f\u5143\u7d20\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                            • \n
                                                                                                                                                                                                                              \u5c5e\u6027<\/span><\/strong><\/span>\u8282\u70b9\uff1a\u5143\u7d20\u6807\u7b7e\u7684\u5c5e\u6027\uff0c\u5982 <\/span><a><\/code><\/span> \u6807\u7b7e\u7684\u94fe\u63a5\u5c5e\u6027<\/span>href<\/code><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                            • \n
                                                                                                                                                                                                                              \u6587\u672c<\/span><\/strong><\/span>\u8282\u70b9\uff1aHTML \u6587\u6863\u4e2d\uff0c\u7ed9\u7528\u6237\u53ef\u89c6\u7684\u5185\u5bb9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                            • \n
                                                                                                                                                                                                                              \u6ce8\u91ca<\/span><\/strong><\/span>\u8282\u70b9\uff1aHTML \u6587\u6863\u6ce8\u91ca\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n
                                                                                                                                                                                                                              9.2 DOM \u5143\u7d20\u5bf9\u8c61\u3001NodeList \u5bf9\u8c61<\/span><\/h3>\n
                                                                                                                                                                                                                                \n
                                                                                                                                                                                                                              • \n
                                                                                                                                                                                                                                DOM \u5143\u7d20\u5bf9\u8c61<\/span><\/strong><\/span>\u4ee3\u8868\u7740\u4e00\u4e2a HTML \u5143\u7d20\u3002\u5143\u7d20\u5bf9\u8c61\u7684<\/span>\u5b50\u8282\u70b9<\/span><\/strong><\/span>\u53ef\u4ee5\u662f\uff1a<\/span><\/p>\n
                                                                                                                                                                                                                                  \n
                                                                                                                                                                                                                                • \n
                                                                                                                                                                                                                                  \u5143\u7d20\u8282\u70b9<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                • \n
                                                                                                                                                                                                                                  \u6587\u672c\u8282\u70b9<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                • \n
                                                                                                                                                                                                                                  \u6ce8\u91ca\u8282\u70b9<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                                • \n
                                                                                                                                                                                                                                  NodeList \u5bf9\u8c61<\/span><\/strong><\/span> \u4ee3\u8868\u4e86\u8282\u70b9\u5217\u8868\uff0c\u7c7b\u4f3c\u4e8e HTML \u5143\u7d20\u7684\u5b50\u8282\u70b9\u96c6\u5408\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                • \n
                                                                                                                                                                                                                                  DOM \u5143\u7d20\u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                                                                    \n
                                                                                                                                                                                                                                  • \n
                                                                                                                                                                                                                                    element.nodeName<\/code><\/span>\uff1a\u662f\u53ea\u8bfb\u5c5e\u6027\uff0c\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\uff08\u5143\u7d20\u7684\u6807\u8bb0\u540d\uff09\uff0c\u8fd4\u56de\u503c\u662f\u5927\u5199\u5b57\u6bcd\uff09\u5176\u5185\u5bb9\u662f\u7ed9\u5b9a\u5143\u7d20\u7684<\/span>\u8282\u70b9\u540d\u5b57<\/span><\/strong><\/span>\u3002<\/span><\/p>\n
                                                                                                                                                                                                                                      \n
                                                                                                                                                                                                                                    • \n
                                                                                                                                                                                                                                      \u5982\u679c\u662f<\/span>\u5143\u7d20<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u8fd9\u4e2a<\/span>\u5143\u7d20\u7684\u540d\u5b57<\/span><\/strong><\/span>\uff08\u4e0e<\/span>\u6807\u7b7e\u540d<\/span><\/strong><\/span>\u76f8\u540c\uff0c\u76f8\u5f53\u4e8etagName\u5c5e\u6027\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                    • \n
                                                                                                                                                                                                                                      \u5982\u679c\u662f<\/span>\u5c5e\u6027<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u8fd9\u4e2a<\/span>\u5c5e\u6027\u7684\u540d\u5b57<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                    • \n
                                                                                                                                                                                                                                      \u5982\u679c\u662f<\/span>\u6587\u672c<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u4e00\u4e2a <\/span>#text<\/code><\/span> \u5b57\u7b26\u4e32<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                    • \n
                                                                                                                                                                                                                                      \u5982\u679c\u662f<\/span>\u6587\u6863<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u4e00\u4e2a <\/span>#document<\/code><\/span> \u5b57\u7b26\u4e32<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                                    • \n
                                                                                                                                                                                                                                      element.nodeType<\/code><\/span>\uff1a\u662f\u53ea\u8bfb\u5c5e\u6027\uff0c\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\uff0c\u6570\u503c\u4ee3\u8868\u7ed9\u5b9a\u5143\u7d20\u7684<\/span>\u8282\u70b9\u7c7b\u578b<\/span><\/strong><\/span>\u3002<\/span><\/p>\n
                                                                                                                                                                                                                                      nodeType<\/code><\/span> \u7ecf\u5e38\u8ddf\uff08<\/span>if\/switch<\/code><\/span> \u6761\u4ef6\u5224\u65ad\u8bed\u53e5\uff09\u914d\u5408\u4f7f\u7528\uff0c\u786e\u4fdd\u4e0d\u4f1a\u5728\u9519\u8bef\u7684\u8282\u70b9\u7c7b\u578b\u4e0a\uff0c\u6267\u884c\u9519\u8bef\u7684\u64cd\u4f5c\u3002<\/span><\/p>\n
                                                                                                                                                                                                                                        \n
                                                                                                                                                                                                                                      • \n
                                                                                                                                                                                                                                        \u5982\u679c\u662f<\/span>\u5143\u7d20<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u6570\u503c <\/span>1<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                      • \n
                                                                                                                                                                                                                                        \u5982\u679c\u662f<\/span>\u5c5e\u6027<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u6570\u503c <\/span>2<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                      • \n
                                                                                                                                                                                                                                        \u5982\u679c\u662f<\/span>\u6587\u672c<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u6570\u503c <\/span>3<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                      • \n
                                                                                                                                                                                                                                        \u5982\u679c\u662f<\/span>\u6ce8\u91ca<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u6570\u503c <\/span>8<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                      • \n
                                                                                                                                                                                                                                        \u5982\u679c\u662f<\/span>\u6587\u6863<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u6570\u503c <\/span>9<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                                      • \n
                                                                                                                                                                                                                                        element.nodeValue<\/code><\/span>\uff1a\u8fd4\u56de\u7ed9\u5b9a\u5143\u7d20\u7684<\/span>\u8282\u70b9\u503c<\/span><\/strong><\/span>\u3002<\/span><\/p>\n
                                                                                                                                                                                                                                        nodeValue<\/code><\/span> \u662f\u8bfb\u5199\u5c5e\u6027\uff0c\u4f46\u4e0d\u80fd\u8bbe\u7f6e\u5143\u7d20\u8282\u70b9\u7684\u503c\u3002\u4e00\u822c<\/span>\u53ea\u7528\u6765<\/span><\/strong><\/span>\u8bbe\u7f6e\u6587\u672c\u8282\u70b9\u7684\u503c\uff0c\u800c\u5c5e\u6027\u8282\u70b9\u7684\u503c\u5efa\u8bae\u7528 <\/span>document.setAttribute()<\/code><\/span> \u8fdb\u884c\u8bbe\u7f6e\u3002<\/span><\/p>\n
                                                                                                                                                                                                                                          \n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          \u5982\u679c\u662f<\/span>\u5143\u7d20<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de <\/span>null<\/span><\/strong><\/span> \u6216 <\/span>undefined<\/span><\/strong><\/span>\uff1b<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          \u5982\u679c\u662f<\/span>\u5c5e\u6027<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u8fd9\u4e2a\u5c5e\u6027\u8282\u70b9\u7684<\/span>\u5c5e\u6027\u503c<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          \u5982\u679c\u662f<\/span>\u6587\u672c<\/span><\/strong><\/span>\u8282\u70b9\uff0c\u8fd4\u56de\u8fd9\u4e2a\u6587\u672c\u8282\u70b9\u7684<\/span>\u5185\u5bb9\u672c\u8eab<\/span><\/strong><\/span>\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.childNodes<\/code><\/span>\uff1a\u8fd4\u56de\u5143\u7d20\u7684\u4e00\u4e2a\u5b50\u8282\u70b9\u6570\u7ec4\uff0c\u6570\u7ec4\u5185\u5bb9\u7531\u7ed9\u5b9a\u5143\u7d20\u8282\u70b9\u7684<\/span>\u5b50\u8282\u70b9<\/span><\/strong><\/span>\u6784\u6210\u3002\u5982\u679c\u9009\u5b9a\u7684 <\/span>element<\/code><\/span> \u6ca1\u6709\u5b50\u8282\u70b9\uff0c\u5219\u8be5\u5c5e\u6027\u8fd4\u56de\u4e0d\u5305\u542b\u8282\u70b9\u7684 <\/span>NodeList<\/code><\/span>\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.children<\/code><\/span>\uff1a\u8fd4\u56de\u5143\u7d20\u7684\u5b50\u5143\u7d20\u7684\u96c6\u5408\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.firstChild<\/code><\/span>\uff1a\u8fd4\u56de <\/span>element<\/code><\/span> \u5b50\u8282\u70b9\u5217\u8868\u4e2d\u7684<\/span>\u7b2c\u4e00\u4e2a<\/span><\/strong><\/span>\u5b50\u8282\u70b9\uff0c\u4e0e <\/span>element.childNodes[0]<\/code><\/span> \u662f\u540c\u6837\u7684\u6548\u679c \u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.lastChild<\/code><\/span>\uff1a\u8fd4\u56de <\/span>element<\/code><\/span> \u5b50\u8282\u70b9\u5217\u8868\u4e2d\u7684<\/span>\u6700\u540e\u4e00\u4e2a<\/span><\/strong><\/span>\u5b50\u8282\u70b9\uff0c\u4e0e <\/span>elementNode.childNodes[elementNode.childNodes.length-1]<\/code><\/span> \u662f\u540c\u6837\u7684\u6548\u679c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.parentNode<\/code><\/span>\uff1a\u8fd4\u56de\u5143\u7d20\u7684<\/span>\u7236\u8282\u70b9<\/span><\/strong><\/span>\uff0c\u7236\u8282\u70b9<\/span>\u53ea\u80fd\u6709\u4e00\u4e2a<\/span><\/strong><\/span>\u3002<\/span><\/p>\n
                                                                                                                                                                                                                                          \u53ef\u901a\u8fc7 <\/span>element.parentNode.parentNode<\/code><\/span> \u8bbf\u95ee\u7236\u8282\u70b9\u7684\u7236\u8282\u70b9\uff08\u5373\u7956\u7236\u8282\u70b9\uff09\u3002<\/span><\/p>\n
                                                                                                                                                                                                                                          parentElement=targetElement.parentNode;<\/code><\/span> \u901a\u8fc7\u7236\u8282\u70b9\u83b7\u53d6\u7236\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.nextSibling<\/code><\/span>\uff1a\u8fd4\u56de\u8be5\u5143\u7d20<\/span>\u4e0b\u4e00\u4e2a<\/span><\/strong><\/span>\u7d27\u8ddf\u7740\u7684\u5144\u5f1f\u8282\u70b9\uff08\u5904\u4e8e\u540c\u4e00\u6811\u5c42\u7ea7\u4e2d\uff09\u3002\u5982\u679c\u65e0\u6b64<\/span>\u4e0b\u4e00\u4e2a<\/span><\/strong><\/span>\u7d27\u8ddf\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5219\u8be5\u5c5e\u6027\u8fd4\u56de null\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.nextElementSibling<\/code><\/span>\uff1a\u8fd4\u56de\u6307\u5b9a\u5143\u7d20\u4e4b\u540e\u7684\u4e0b\u4e00\u4e2a\u5144\u5f1f\u5143\u7d20\uff08\u76f8\u540c\u8282\u70b9\u6811\u5c42\u4e2d\u7684\u4e0b\u4e00\u4e2a\u5143\u7d20\u8282\u70b9\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.previousSibling<\/code><\/span>\uff1a\u8fd4\u56de\u8be5\u5143\u7d20<\/span>\u4e0a\u4e00\u4e2a<\/span><\/strong><\/span>\u7d27\u8ddf\u7740\u7684\u5144\u5f1f\u8282\u70b9\uff08\u5904\u4e8e\u540c\u4e00\u6811\u5c42\u7ea7\u4e2d\uff09\u3002\u5982\u679c\u65e0\u6b64<\/span>\u4e0a\u4e00\u4e2a<\/span><\/strong><\/span>\u7d27\u8ddf\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5219\u8be5\u5c5e\u6027\u8fd4\u56de null\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.previousElementSibling<\/code><\/span>\uff1a\u8fd4\u56de\u6307\u5b9a\u5143\u7d20\u7684\u524d\u4e00\u4e2a\u5144\u5f1f\u5143\u7d20\uff08\u76f8\u540c\u8282\u70b9\u6811\u5c42\u4e2d\u7684\u524d\u4e00\u4e2a\u5143\u7d20\u8282\u70b9\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.accessKey<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56deaccesskey\u4e00\u4e2a\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.attributes<\/code><\/span>\uff1a\u8fd4\u56de\u4e00\u4e2a\u5143\u7d20\u7684\u5c5e\u6027\u6570\u7ec4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.classList<\/code><\/span>\uff1a\u8fd4\u56de\u5143\u7d20\u7684\u7c7b\u540d\uff0c\u4f5c\u4e3a DOMTokenList \u5bf9\u8c61\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.className<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5143\u7d20\u7684class\u5c5e\u6027\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.clientTop<\/code><\/span>\uff1a\u8868\u793a\u4e00\u4e2a\u5143\u7d20\u7684\u9876\u90e8\u8fb9\u6846\u7684\u5bbd\u5ea6\uff0c\u4ee5\u50cf\u7d20\u8868\u793a\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.clientLeft<\/code><\/span>\uff1a\u8868\u793a\u4e00\u4e2a\u5143\u7d20\u7684\u5de6\u8fb9\u6846\u7684\u5bbd\u5ea6\uff0c\u4ee5\u50cf\u7d20\u8868\u793a\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.clientHeight<\/code><\/span>\uff1a\u5728\u9875\u9762\u4e0a\u8fd4\u56de\u5185\u5bb9\u7684\u53ef\u89c6\u9ad8\u5ea6\uff08\u9ad8\u5ea6\u5305\u542b\u5185\u8fb9\u8ddd\uff08padding\uff09\uff0c\u4e0d\u5305\u542b\u8fb9\u6846\uff08border\uff09\uff0c\u5916\u8fb9\u8ddd\uff08margin\uff09\u548c\u6eda\u52a8\u6761\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.clientWidth<\/code><\/span>\uff1a\u5728\u9875\u9762\u4e0a\u8fd4\u56de\u5185\u5bb9\u7684\u53ef\u89c6\u5bbd\u5ea6\uff08\u5bbd\u5ea6\u5305\u542b\u5185\u8fb9\u8ddd\uff08padding\uff09\uff0c\u4e0d\u5305\u542b\u8fb9\u6846\uff08border\uff09\uff0c\u5916\u8fb9\u8ddd\uff08margin\uff09\u548c\u6eda\u52a8\u6761\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.contentEditable<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5143\u7d20\u7684\u5185\u5bb9\u662f\u5426\u53ef\u7f16\u8f91\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.dir<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u4e00\u4e2a\u5143\u7d20\u4e2d\u7684\u6587\u672c\u65b9\u5411\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.firstElementChild<\/code><\/span>\uff1a\u8fd4\u56de\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u5b50\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.id<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8005\u8fd4\u56de\u5143\u7d20\u7684 id\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.innerHTML<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8005\u8fd4\u56de\u5143\u7d20\u7684\u5185\u5bb9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.isContentEditable<\/code><\/span>\uff1a\u5982\u679c\u5143\u7d20\u5185\u5bb9\u53ef\u7f16\u8f91\u8fd4\u56de true\uff0c\u5426\u5219\u8fd4\u56defalse<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.lang<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8005\u8fd4\u56de\u4e00\u4e2a\u5143\u7d20\u7684\u8bed\u8a00\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.lastElementChild<\/code><\/span>\uff1a\u8fd4\u56de\u6307\u5b9a\u5143\u7d20\u7684\u6700\u540e\u4e00\u4e2a\u5b50\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.namespaceURI<\/code><\/span>\uff1a\u8fd4\u56de\u547d\u540d\u7a7a\u95f4\u7684 URI\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.offsetHeight<\/code><\/span>\uff1a\u8fd4\u56de\u4efb\u4f55\u4e00\u4e2a\u5143\u7d20\u7684\u9ad8\u5ea6\u5305\u62ec\u8fb9\u6846\uff08border\uff09\u548c\u5185\u8fb9\u8ddd\uff08padding\uff09\uff0c\u4f46\u4e0d\u5305\u542b\u5916\u8fb9\u8ddd\uff08margin\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.offsetWidth<\/code><\/span>\uff1a\u8fd4\u56de\u5143\u7d20\u7684\u5bbd\u5ea6\uff0c\u5305\u62ec\u8fb9\u6846\uff08border\uff09\u548c\u5185\u8fb9\u8ddd\uff08padding\uff09\uff0c\u4f46\u4e0d\u5305\u542b\u5916\u8fb9\u8ddd\uff08margin\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.offsetLeft<\/code><\/span>\uff1a\u8fd4\u56de\u5f53\u524d\u5143\u7d20\u7684\u76f8\u5bf9\u6c34\u5e73\u504f\u79fb\u4f4d\u7f6e\u7684\u504f\u79fb\u5bb9\u5668\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.offsetParent<\/code><\/span>\uff1a\u8fd4\u56de\u5143\u7d20\u7684\u504f\u79fb\u5bb9\u5668\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.offsetTop<\/code><\/span>\uff1a\u8fd4\u56de\u5f53\u524d\u5143\u7d20\u7684\u76f8\u5bf9\u5782\u76f4\u504f\u79fb\u4f4d\u7f6e\u7684\u504f\u79fb\u5bb9\u5668\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.ownerDocument<\/code><\/span>\uff1a\u8fd4\u56de\u5143\u7d20\u7684\u6839\u5143\u7d20\uff08\u6587\u6863\u5bf9\u8c61\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.scrollHeight<\/code><\/span>\uff1a\u8fd4\u56de\u6574\u4e2a\u5143\u7d20\u7684\u9ad8\u5ea6\uff08\u5305\u62ec\u5e26\u6eda\u52a8\u6761\u7684\u9690\u853d\u7684\u5730\u65b9\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.scrollLeft<\/code><\/span>\uff1a\u8fd4\u56de\u5f53\u524d\u89c6\u56fe\u4e2d\u7684\u5b9e\u9645\u5143\u7d20\u7684\u5de6\u8fb9\u7f18\u548c\u5de6\u8fb9\u7f18\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.scrollTop<\/code><\/span>\uff1a\u8fd4\u56de\u5f53\u524d\u89c6\u56fe\u4e2d\u7684\u5b9e\u9645\u5143\u7d20\u7684\u9876\u90e8\u8fb9\u7f18\u548c\u9876\u90e8\u8fb9\u7f18\u4e4b\u95f4\u7684\u8ddd\u79bb\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.scrollWidth<\/code><\/span>\uff1a\u8fd4\u56de\u5143\u7d20\u7684\u6574\u4e2a\u5bbd\u5ea6\uff08\u5305\u62ec\u5e26\u6eda\u52a8\u6761\u7684\u9690\u853d\u7684\u5730\u65b9\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.style<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5143\u7d20\u7684\u6837\u5f0f\u5c5e\u6027\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.tabIndex<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5143\u7d20\u7684\u6807\u7b7e\u987a\u5e8f\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.tagName<\/code><\/span>\uff1a\u4f5c\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u8fd4\u56de\u67d0\u4e2a\u5143\u7d20\u7684\u6807\u8bb0\u540d\uff08\u5927\u5199\uff09\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.textContent<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u4e00\u4e2a\u8282\u70b9\u548c\u5b83\u7684\u6587\u672c\u5185\u5bb9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          element.title<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8fd4\u56de\u5143\u7d20\u7684title\u5c5e\u6027\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                                        • \n
                                                                                                                                                                                                                                          DOM \u5143\u7d20\u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                                                                            \n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.addEventListener(event,function,useCapture);<\/code><\/span>\uff1a\u5411\u6307\u5b9a\u5143\u7d20\u6dfb\u52a0\u4e8b\u4ef6\u53e5\u67c4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.removeEventListener(event,function,useCapture);<\/code><\/span>\uff1a\u79fb\u9664\u7531 addEventListener() \u65b9\u6cd5\u6dfb\u52a0\u7684\u4e8b\u4ef6\u53e5\u67c4\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.appendChild(newChildNode);<\/code><\/span>\uff1a\u5728\u5143\u7d20\u7684\u5b50\u8282\u70b9\u5217\u8868\u6700\u540e\uff0c\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5b50\u5143\u7d20\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.cloneNode(BooleanValue);<\/code><\/span>\uff1a\u514b\u9686\u67d0\u4e2a\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.compareDocumentPosition(node);<\/code><\/span>\uff1a\u6bd4\u8f83\u4e24\u4e2a\u5143\u7d20\u7684\u6587\u6863\u4f4d\u7f6e\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.focus();<\/code><\/span>\uff1a\u8bbe\u7f6e\u6587\u6863\u6216\u5143\u7d20\u83b7\u53d6\u7126\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.getAttribute(\u5c5e\u6027\u540d);<\/code><\/span>\uff1a\u53ea\u80fd\u901a\u8fc7\u5143\u7d20\u8282\u70b9\u5bf9\u8c61\u8c03\u7528\u7684\u51fd\u6570\uff0c\u901a\u8fc7\u5143\u7d20\u8282\u70b9\u7684\u5c5e\u6027\u540d\u79f0\u83b7\u53d6\u5c5e\u6027\u7684\u503c\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.getAttributeNode(\u5c5e\u6027\u540d);<\/code><\/span>\uff1a\u8fd4\u56de\u6307\u5b9a\u5c5e\u6027\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.getElementsByTagName(\u6807\u7b7e\u540d);<\/code><\/span>\uff1a\u8fd4\u56de\u6307\u5b9a\u6807\u7b7e\u540d\u7684\u6240\u6709\u5b50\u5143\u7d20\u96c6\u5408\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element. getElementsByClassName(\u7c7b\u540d);<\/code><\/span>\uff1a\u8fd4\u56de\u6587\u6863\u4e2d\u6240\u6709\u6307\u5b9a\u7c7b\u540d\u7684\u5143\u7d20\u96c6\u5408\uff0c\u4f5c\u4e3a NodeList \u5bf9\u8c61\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.getFeature();<\/code><\/span>\uff1a\u8fd4\u56de\u6307\u5b9a\u7279\u5f81\u7684\u6267\u884cAPIs\u5bf9\u8c61\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.getUserData();<\/code><\/span>\uff1a\u8fd4\u56de\u4e00\u4e2a\u5143\u7d20\u4e2d\u5173\u8054\u952e\u503c\u7684\u5bf9\u8c61\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.hasAttribute(\u5c5e\u6027\u540d);<\/code><\/span>\uff1a\u5982\u679c\u5143\u7d20\u4e2d\u5b58\u5728\u6307\u5b9a\u7684\u5c5e\u6027\u8fd4\u56de true\uff0c\u5426\u5219\u8fd4\u56defalse\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.hasAttributes();<\/code><\/span>\uff1a\u5982\u679c\u5143\u7d20\u6709\u4efb\u4f55\u5c5e\u6027\u8fd4\u56detrue\uff0c\u5426\u5219\u8fd4\u56defalse\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.hasChildNodes();<\/code><\/span>\uff1a\u8fd4\u56de\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5177\u6709\u4efb\u4f55\u5b50\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.hasFocus();<\/code><\/span>\uff1a\u8fd4\u56de\u5e03\u5c14\u503c\uff0c\u68c0\u6d4b\u6587\u6863\u6216\u5143\u7d20\u662f\u5426\u83b7\u53d6\u7126\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.insertBefore(newNode,existingNode);<\/code><\/span>\uff1a\u73b0\u6709\u5df2\u5b58\u5728\u7684\u5b50\u5143\u7d20\u8282\u70b9\u4e4b\u524d\u63d2\u5165\u4e00\u4e2a\u65b0\u7684\u5b50\u5143\u7d20\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.isDefaultNamespace(namespaceURI);<\/code><\/span>\uff1a\u5982\u679c\u6307\u5b9a\u4e86namespaceURI \u8fd4\u56de true\uff0c\u5426\u5219\u8fd4\u56de false\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.isEqualNode(node);<\/code><\/span>\uff1a\u68c0\u67e5\u4e24\u4e2a\u5143\u7d20\u662f\u5426\u76f8\u7b49\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.isSameNode(node);<\/code><\/span>\uff1a\u68c0\u67e5\u4e24\u4e2a\u5143\u7d20\u6240\u6709\u6709\u76f8\u540c\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.isSupported(feature,version);<\/code><\/span>\uff1a\u5982\u679c\u5728\u5143\u7d20\u4e2d\u652f\u6301\u6307\u5b9a\u7279\u5f81\u8fd4\u56de true\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.matches(\u9009\u62e9\u5668);<\/code><\/span>\uff1a\u5982\u679c\u5143\u7d20\u5339\u914d\u6307\u5b9a\u7684 CSS \u9009\u62e9\u5668\uff0cmatches() \u65b9\u6cd5\u5c31\u8fd4\u56de true\uff0c\u5426\u5219\u8fd4\u56de false\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.normalize();<\/code><\/span>\uff1a\u4f7f\u5f97\u6b64\u6210\u4e3a\u4e00\u4e2a”normal”\u7684\u5f62\u5f0f\uff0c\u5176\u4e2d\u53ea\u6709\u7ed3\u6784\uff08\u5982\u5143\u7d20\uff0c\u6ce8\u91ca\uff0c\u5904\u7406\u6307\u4ee4\uff0cCDATA\u8282\u548c\u5b9e\u4f53\u5f15\u7528\uff09\u9694\u5f00Text\u8282\u70b9\uff0c\u5373\u5143\u7d20\uff08\u5305\u62ec\u5c5e\u6027\uff09\u4e0b\u9762\u7684\u6240\u6709\u6587\u672c\u8282\u70b9\uff0c\u65e2\u6ca1\u6709\u76f8\u90bb\u7684\u6587\u672c\u8282\u70b9\u4e5f\u6ca1\u6709\u7a7a\u7684\u6587\u672c\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            document.querySelector(\u9009\u62e9\u5668);<\/code><\/span>\uff1a\u8fd4\u56de\u5339\u914d\u6307\u5b9a CSS \u9009\u62e9\u5668\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u5b50\u5143\u7d20\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            document.querySelectorAll(\u9009\u62e9\u5668);<\/code><\/span>\uff1a\u8fd4\u56de\u5339\u914d\u6307\u5b9a CSS \u9009\u62e9\u5668\u5143\u7d20\u7684\u6240\u6709\u5b50\u5143\u7d20\u8282\u70b9\u5217\u8868\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.removeAttribute(\u5c5e\u6027\u540d);<\/code><\/span>\uff1a\u4ece\u5143\u7d20\u4e2d\u5220\u9664\u6307\u5b9a\u7684\u5c5e\u6027\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.removeAttributeNode(\u5c5e\u6027\u8282\u70b9);<\/code><\/span>\uff1a\u5220\u9664\u6307\u5b9a\u5c5e\u6027\u8282\u70b9\u5e76\u8fd4\u56de\u79fb\u9664\u540e\u7684\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.removeChild(targrtNode);<\/code><\/span>\uff1a\u4ece\u4e00\u4e2a\u7ed9\u5b9a\u5143\u7d20\u8282\u70b9\u4e2d\uff0c\u5220\u9664\u4e00\u4e2a\u6307\u5b9a\u7684\u5b50\u5143\u7d20\u8282\u70b9\u3002\u5982\u679c\u5220\u9664\u6210\u529f\uff0c\u8fd4\u56de\u88ab\u5220\u9664\u7684\u8282\u70b9\u3002\u5982\u679c\u5220\u9664\u5931\u8d25\uff0c\u5219\u8fd4\u56de NULL\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.replaceChild(newNode,oldNode);<\/code><\/span>\uff1a\u4ece\u4e00\u4e2a\u7ed9\u5b9a\u5143\u7d20\u8282\u70b9\u4e2d\uff0c\u628a\u65e7\u7684\u5b50\u5143\u7d20\u8282\u70b9\uff0c\u66ff\u6362\u6210\u65b0\u7684\u5b50\u5143\u7d20\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.setAttribute(\"\u5c5e\u6027\u540d\",\"\u5c5e\u6027\u503c\");<\/code><\/span>\uff1a\u53ea\u80fd\u901a\u8fc7\u5143\u7d20\u8282\u70b9\u5bf9\u8c61\u8c03\u7528\u7684\u51fd\u6570\uff0c\u5728\u5143\u7d20\u8282\u70b9\u589e\u52a0\u4e00\u4e2a\u6307\u5b9a\u540d\u79f0\u548c\u503c\u7684\u65b0\u5c5e\u6027\uff0c\u6216\u8005\u628a\u4e00\u4e2a\u73b0\u6709\u7684\u5c5e\u6027\u8bbe\u5b9a\u4e3a\u6307\u5b9a\u7684\u503c\u3002\u5982\u679c\u4e0d\u5b58\u5728\u8be5\u5c5e\u6027\u540d\uff0c\u5c06\u521b\u5efa\u4e00\u4e2a\u65b0\u5c5e\u6027\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.setAttributeNode(nodeValue);<\/code><\/span>\uff1a\u8bbe\u7f6e\u6216\u8005\u6539\u53d8\u6307\u5b9a\u5c5e\u6027\u8282\u70b9\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.setUserData();<\/code><\/span>\uff1a\u5728\u5143\u7d20\u4e2d\u4e3a\u6307\u5b9a\u952e\u503c\u5173\u8054\u5bf9\u8c61\u3002<\/span><\/p>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            element.toString();<\/code><\/span>\uff1a\u4e00\u4e2a\u5143\u7d20\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u3002<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                                          • \n
                                                                                                                                                                                                                                            NodeList \u5bf9\u8c61<\/span>\u5c5e\u6027<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                                                                              \n
                                                                                                                                                                                                                                            • \n
                                                                                                                                                                                                                                              nodelist.length<\/code><\/span>\uff1a\u8fd4\u56de\u8282\u70b9\u5217\u8868\u7684\u8282\u70b9\u6570\u76ee\u3002<\/span><\/p>\n
                                                                                                                                                                                                                                                \n
                                                                                                                                                                                                                                              • \n
                                                                                                                                                                                                                                                document.body.childNodes.length;<\/code><\/span>\uff1a\u8fd4\u56de body \u5143\u7d20\u5b50\u8282\u70b9\u7684\u7684\u6570\u76ee<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n
                                                                                                                                                                                                                                              • \n
                                                                                                                                                                                                                                                NodeList \u5bf9\u8c61<\/span>\u65b9\u6cd5<\/span><\/strong><\/span><\/p>\n
                                                                                                                                                                                                                                                  \n
                                                                                                                                                                                                                                                • \n
                                                                                                                                                                                                                                                  nodelist.item(index);<\/code><\/span>\uff1a\u8fd4\u56de\u67d0\u4e2a\u5143\u7d20\u57fa\u4e8e\u6587\u6863\u6811\u7684<\/span>\u7d22\u5f15<\/span><\/strong><\/span><\/p>\n