{"id":167076,"date":"2024-05-08T15:55:26","date_gmt":"2024-05-08T07:55:26","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/167076.html"},"modified":"2024-05-08T15:55:34","modified_gmt":"2024-05-08T07:55:34","slug":"javascript%e4%ba%a4%e4%ba%92%e6%80%a7%e5%bc%ba%e5%90%97","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/167076.html","title":{"rendered":"javascript\u4ea4\u4e92\u6027\u5f3a\u5417"},"content":{"rendered":"

\"javascript\u4ea4\u4e92\u6027\u5f3a\u5417\"<\/p>\n

JavaScript \u662f\u6784\u5efa\u52a8\u6001\u3001\u4ea4\u4e92\u5f0f\u7f51\u9875\u7684\u57fa\u77f3\uff0c\u5176\u4ea4\u4e92\u6027\u975e\u5e38\u5f3a\u3002\u8fd9\u4f53\u73b0\u5728\u4ee5\u4e0b\u65b9\u9762\uff1a\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b\u3001DOM\u64cd\u4f5c\u3001\u5f02\u6b65\u7f16\u7a0b\u3001\u7956\u6c0f\u80fd\u529b<\/strong>\u3002\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b\u5141\u8bb8\u7528\u6237\u4e0e\u7f51\u9875\u5143\u7d20\u4ea4\u4e92\uff0c\u5e76\u5728\u7279\u5b9a\u884c\u4e3a\u53d1\u751f\u65f6\u54cd\u5e94\u3002\u4f8b\u5982\uff0c\u5f53\u7528\u6237\u70b9\u51fb\u6309\u94ae\u65f6\uff0cJavaScript \u53ef\u4ee5\u6267\u884c\u51fd\u6570\u6765\u66f4\u65b0\u9875\u9762\u5185\u5bb9\u3002\u8fd9\u79cd\u5373\u65f6\u7684\u54cd\u5e94\u6027\u662f JavaScript \u4ea4\u4e92\u6027\u5f3a\u7684\u660e\u663e\u8bc1\u636e\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b<\/h3>\n<\/p>\n

\u4ea4\u4e92\u6027\u7684\u4e00\u4e2a\u5173\u952e\u7279\u5f81\u662f\u5982\u4f55\u54cd\u5e94\u7528\u6237\u7684\u884c\u4e3a\uff0c\u8fd9\u6b63\u662f JavaScript \u901a\u8fc7\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b\u6240\u505a\u7684\u3002<\/p>\n<\/p>\n

\u7528\u6237\u754c\u9762\u4e8b\u4ef6<\/h4>\n<\/p>\n

\u5728 JavaScript \u4e2d\uff0c\u51e0\u4e4e\u4efb\u4f55\u7528\u6237\u4e0e\u7f51\u9875\u5143\u7d20\u7684\u4e92\u52a8\u90fd\u53ef\u4ee5\u89e6\u53d1\u4e8b\u4ef6\u3002\u8fd9\u5305\u62ec\u9f20\u6807\u70b9\u51fb\u3001\u952e\u76d8\u8f93\u5165\u3001\u8868\u5355\u63d0\u4ea4\u3001\u89e6\u6478\u5c4f\u5e55\u6ed1\u52a8\u7b49\u3002JavaScript \u901a\u8fc7\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668\u6765\u5904\u7406\u8fd9\u4e9b\u4e8b\u4ef6\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 addEventListener<\/code> \u65b9\u6cd5\u53ef\u4ee5\u8bbe\u5b9a\u5f53\u7528\u6237\u70b9\u51fb\u67d0\u4e2a\u6309\u94ae\u65f6\u89e6\u53d1\u7684\u51fd\u6570\u3002<\/p>\n<\/p>\n

\u52a8\u6001\u5185\u5bb9\u66f4\u65b0<\/h4>\n<\/p>\n

\u5f53\u4e8b\u4ef6\u53d1\u751f\u65f6\uff0cJavaScript \u80fd\u591f\u52a8\u6001\u66f4\u65b0\u7f51\u9875\u4e0a\u7684\u5185\u5bb9\u3002\u65e0\u9700\u5237\u65b0\u6574\u4e2a\u9875\u9762\uff0c\u53ef\u4ee5\u4ec5\u4fee\u6539\u7528\u6237\u4ea4\u4e92\u7684\u90e8\u5206\u3002\u8fd9\u5bf9\u4e8e\u521b\u5efa\u6d41\u7545\u7684\u7528\u6237\u4f53\u9a8c\u81f3\u5173\u91cd\u8981\u3002\u4fee\u6539 DOM\uff08\u6587\u6863\u5bf9\u8c61\u6a21\u578b\uff09\u4f7f\u7f51\u9875\u5143\u7d20\u7684\u5185\u5bb9\u3001\u6837\u5f0f\u6216\u7ed3\u6784\u53d1\u751f\u53d8\u5316\uff0c\u8fd9\u4e00\u70b9\u662f JavaScript \u5b9e\u73b0\u4ea4\u4e92\u6027\u7684\u57fa\u7840\u3002<\/p>\n<\/p>\n

\u4e8c\u3001DOM\u64cd\u63a7<\/h3>\n<\/p>\n

JavaScript \u901a\u8fc7 DOM API \u4ee5\u7f16\u7a0b\u65b9\u5f0f\u64cd\u4f5c\u9875\u9762\u5185\u5bb9\uff0c\u8fd9\u662f\u5176\u4ea4\u4e92\u6027\u7684\u53e6\u4e00\u4e2a\u65b9\u9762\u3002<\/p>\n<\/p>\n

\u5b9e\u65f6\u5185\u5bb9\u64cd\u63a7<\/h4>\n<\/p>\n

JavaScript \u5141\u8bb8\u5f00\u53d1\u8005\u901a\u8fc7\u64cd\u4f5c DOM \u6765\u5b9e\u65f6\u66f4\u6539\u7f51\u9875\u7684\u5185\u5bb9\u548c\u7ed3\u6784\u3002\u6dfb\u52a0\u3001\u5220\u9664\u6216\u66ff\u6362\u5143\u7d20\uff0c\u4fee\u6539\u5143\u7d20\u5c5e\u6027\u548c\u6837\u5f0f\uff0c\u90fd\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684 JavaScript \u4ee3\u7801\u5b8c\u6210\u3002<\/p>\n<\/p>\n

\u4e30\u5bcc\u7684\u7528\u6237\u53cd\u9988<\/h4>\n<\/p>\n

\u4e3a\u4e86\u63d0\u5347\u7528\u6237\u4f53\u9a8c\uff0cJavaScript \u8fd8\u80fd\u591f\u6839\u636e\u7528\u6237\u7684\u64cd\u4f5c\u5b9e\u65f6\u63d0\u4f9b\u53cd\u9988\u3002\u4f8b\u5982\uff0c\u5f53\u7528\u6237\u586b\u5199\u8868\u5355\u65f6\uff0cJavaScript \u53ef\u4ee5\u7acb\u5373\u9a8c\u8bc1\u8f93\u5165\u6570\u636e\u7684\u6709\u6548\u6027\uff0c\u5e76\u63d0\u4f9b\u5fc5\u8981\u7684\u63d0\u793a\u4fe1\u606f\u3002<\/p>\n<\/p>\n

\u4e09\u3001\u5f02\u6b65\u7f16\u7a0b<\/h3>\n<\/p>\n

JavaScript \u7684\u5f02\u6b65\u7279\u6027\u5141\u8bb8\u5728\u4e0d\u5f71\u54cd\u6574\u4f53\u9875\u9762\u8fd0\u884c\u7684\u60c5\u51b5\u4e0b\uff0c\u6267\u884c\u957f\u65f6\u95f4\u8fd0\u884c\u7684\u4efb\u52a1\u6216\u8bf7\u6c42\u8fdc\u7a0b\u8d44\u6e90\u3002<\/p>\n<\/p>\n

AJAX\u8bf7\u6c42<\/h4>\n<\/p>\n

AJAX\uff08Asynchronous JavaScript and XML\uff09\u5141\u8bb8\u7f51\u9875\u5728\u4e0d\u91cd\u65b0\u52a0\u8f7d\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0e\u670d\u52a1\u5668\u8fdb\u884c\u6570\u636e\u4ea4\u6362\u548c\u66f4\u65b0\u3002\u4f7f\u7528 XMLHttpRequest<\/code> \u6216 fetch<\/code> API\uff0c\u53ef\u4ee5\u5728\u540e\u53f0\u8fdb\u884c\u6570\u636e\u8bf7\u6c42\uff0c\u7136\u540e\u5728\u524d\u7aef\u66f4\u65b0\u9875\u9762\uff0c\u7528\u6237\u7ee7\u7eed\u64cd\u4f5c\u9875\u9762\u65f6\u4e0d\u4f1a\u611f\u5230\u505c\u987f\u3002<\/p>\n<\/p>\n

Promises\u548cAsync\/AwAI<\/a>t<\/h4>\n<\/p>\n

\u968f\u7740\u6280\u672f\u7684\u53d1\u5c55\uff0cJavaScript \u63d0\u4f9b\u4e86 Promises<\/code> \u548c Async\/Await<\/code> \u4f7f\u5f02\u6b65\u7f16\u7a0b\u66f4\u52a0\u7b80\u6d01\u548c\u76f4\u89c2\u3002\u8fd9\u4e9b\u6a21\u5f0f\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\uff0c\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u540c\u65f6\u4f7f\u5f97\u590d\u6742\u7684\u7528\u6237\u4ea4\u4e92\u548c\u6570\u636e\u901a\u4fe1\u53d8\u5f97\u66f4\u52a0\u6d41\u7545\u3002<\/p>\n<\/p>\n

\u56db\u3001\u589e\u5f3a\u7684\u4ea4\u4e92\u80fd\u529b<\/h3>\n<\/p>\n

JavaScript \u4e0d\u4ec5\u9650\u4e8e\u5904\u7406\u7b80\u5355\u7684\u7528\u6237\u8f93\u5165\u548c\u52a8\u6001\u5185\u5bb9\uff0c\u5b83\u8fd8\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u9ad8\u7ea7\u529f\u80fd\uff0c\u52a0\u5f3a\u4e86\u4ea4\u4e92\u6027\u3002<\/p>\n<\/p>\n

\u52a8\u753b\u4e0e\u89c6\u89c9\u6548\u679c<\/h4>\n<\/p>\n

JavaScript \u4e0e CSS \u7684\u7ed3\u5408\uff0c\u53ef\u4ee5\u521b\u5efa\u4ee4\u4eba\u5370\u8c61\u6df1\u523b\u7684\u52a8\u753b\u548c\u89c6\u89c9\u6548\u679c\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528 JavaScript \u63a7\u5236CSS\u52a8\u753b\u7684\u5f00\u59cb\u3001\u6682\u505c\u548c\u505c\u6b62\uff0c\u4ee5\u53ca\u4f7f\u7528\u5404\u79cd\u5e93\uff08\u5982 GreenSock\uff09\u521b\u5efa\u590d\u6742\u7684\u52a8\u753b\u5e8f\u5217\u3002<\/p>\n<\/p>\n

\u524d\u7aef\u6846\u67b6\u548c\u5e93<\/h4>\n<\/p>\n

\u73b0\u4ee3 JavaScript \u5f00\u53d1\u4e2d\u4f7f\u7528\u4e86\u4f17\u591a\u6846\u67b6\u548c\u5e93\uff0c\u5982 React\u3001Angular \u548c Vue.js\uff0c\u5b83\u4eec\u63d0\u4f9b\u4e86\u6784\u5efa\u590d\u6742\u4ea4\u4e92\u5f0f\u7528\u6237\u754c\u9762\u7684\u5de5\u5177\u3002\u8fd9\u4e9b\u6846\u67b6\u548c\u5e93\u5c01\u88c5\u4e86\u5e95\u5c42\u7684 DOM \u64cd\u4f5c\u548c\u4e8b\u4ef6\u5904\u7406\u673a\u5236\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u4e13\u6ce8\u4e8e\u5b9e\u73b0\u66f4\u7cbe\u7ec6\u7684\u4ea4\u4e92\u903b\u8f91\u3002<\/p>\n<\/p>\n

\u901a\u8fc7JavaScript\u7684\u4e8b\u4ef6\u5904\u7406\u3001DOM\u64cd\u4f5c\u3001\u5f02\u6b65\u7f16\u7a0b\u548c\u589e\u5f3a\u7684\u4ea4\u4e92\u80fd\u529b\uff0c\u53ef\u4ee5\u521b\u5efa\u51fa\u54cd\u5e94\u5feb\u901f\u3001\u7528\u6237\u53cb\u597d\u7684\u52a8\u6001\u7f51\u9875\u548c\u5e94\u7528\u7a0b\u5e8f\u3002\u8fd9\u4e9b\u7279\u6027\u5171\u540c\u4f5c\u7528\uff0c\u5927\u5927\u5f3a\u5316\u4e86\u7f51\u9875\u548c\u5e94\u7528\u7684\u4ea4\u4e92\u6027\uff0c\u4f7fJavaScript\u6210\u4e3a\u4e86\u5f00\u53d1\u73b0\u4ee3\u4ea4\u4e92\u5f0f\u5e94\u7528\u7684\u5fc5\u5907\u6280\u672f\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n

1. \u4e3a\u4ec0\u4e48Javascript\u5177\u6709\u5f3a\u5927\u7684\u4ea4\u4e92\u6027\uff1f<\/strong>
\nJavascript\u4e4b\u6240\u4ee5\u5177\u6709\u5f3a\u5927\u7684\u4ea4\u4e92\u6027\uff0c\u662f\u56e0\u4e3a\u5b83\u662f\u4e00\u79cd\u57fa\u4e8e\u4e8b\u4ef6\u9a71\u52a8\u7684\u811a\u672c\u8bed\u8a00\u3002\u5b83\u80fd\u591f\u901a\u8fc7\u8ffd\u8e2a\u548c\u54cd\u5e94\u7528\u6237\u7684\u64cd\u4f5c\uff0c\u5b9e\u73b0\u4e0e\u7528\u6237\u7684\u5b9e\u65f6\u4ea4\u4e92\u3002\u901a\u8fc7\u76d1\u542c\u9875\u9762\u4e0a\u7684\u5404\u79cd\u4e8b\u4ef6\uff0c\u5982\u70b9\u51fb\u3001\u8f93\u5165\u7b49\uff0cJavascript\u53ef\u4ee5\u5b9e\u73b0\u52a8\u6001\u6539\u53d8\u9875\u9762\u5185\u5bb9\u3001\u8c03\u7528API\u63a5\u53e3\u3001\u53d1\u9001\u7f51\u7edc\u8bf7\u6c42\u7b49\u5404\u79cd\u4ea4\u4e92\u884c\u4e3a\uff0c\u4ece\u800c\u589e\u5f3a\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n

2. Javascript\u5982\u4f55\u5b9e\u73b0\u4e0e\u7528\u6237\u7684\u4ea4\u4e92\uff1f<\/strong>
\n\u901a\u8fc7Javascript\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e9b\u4e0e\u7528\u6237\u76f4\u63a5\u4ea4\u4e92\u7684\u529f\u80fd\uff0c\u6bd4\u5982\u8868\u5355\u9a8c\u8bc1\u3001\u52a0\u8f7d\/\u5237\u65b0\u6570\u636e\u3001\u52a8\u6001\u6539\u53d8\u9875\u9762\u5143\u7d20\u7b49\u7b49\u3002\u901a\u8fc7\u76d1\u542c\u9f20\u6807\u70b9\u51fb\u3001\u952e\u76d8\u8f93\u5165\u3001\u9875\u9762\u6eda\u52a8\u7b49\u4e8b\u4ef6\uff0cJavascript\u53ef\u4ee5\u6355\u6349\u5230\u7528\u6237\u7684\u64cd\u4f5c\uff0c\u5e76\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u505a\u51fa\u76f8\u5e94\u7684\u54cd\u5e94\uff0c\u4ece\u800c\u5b9e\u73b0\u4e0e\u7528\u6237\u7684\u4ea4\u4e92\u3002<\/p>\n

3. Javascript\u5728\u7f51\u9875\u4ea4\u4e92\u4e2d\u6709\u54ea\u4e9b\u5177\u4f53\u5e94\u7528\uff1f<\/strong>
\nJavascript\u5728\u7f51\u9875\u4ea4\u4e92\u4e2d\u6709\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u6bd4\u5982\u8868\u5355\u9a8c\u8bc1\u3001\u5f39\u7a97\u63d0\u793a\u3001\u6570\u636e\u52a0\u8f7d\u3001\u9875\u9762\u5185\u5bb9\u66f4\u65b0\u7b49\u3002\u901a\u8fc7Javascript\uff0c\u6211\u4eec\u53ef\u4ee5\u5bf9\u7528\u6237\u7684\u8f93\u5165\u8fdb\u884c\u5b9e\u65f6\u9a8c\u8bc1\uff0c\u63d0\u9192\u7528\u6237\u8f93\u5165\u9519\u8bef\uff1b\u8fd8\u53ef\u4ee5\u901a\u8fc7Ajax\u6280\u672f\u5b9e\u73b0\u65e0\u9700\u5237\u65b0\u9875\u9762\u7684\u6570\u636e\u4ea4\u4e92\uff0c\u63d0\u5347\u7528\u6237\u7684\u4f7f\u7528\u4f53\u9a8c\uff1b\u6b64\u5916\uff0cJavascript\u8fd8\u53ef\u4ee5\u5b9e\u73b0\u52a8\u6001\u6539\u53d8\u9875\u9762\u5143\u7d20\u7684\u6548\u679c\uff0c\u6bd4\u5982\u5b9e\u73b0\u9875\u9762\u6ed1\u52a8\u3001\u56fe\u50cf\u8f6e\u64ad\u7b49\u3002\u8fd9\u4e9b\u5e94\u7528\u90fd\u589e\u5f3a\u4e86\u7f51\u9875\u4e0e\u7528\u6237\u7684\u4ea4\u4e92\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"JavaScript \u662f\u6784\u5efa\u52a8\u6001\u3001\u4ea4\u4e92\u5f0f\u7f51\u9875\u7684\u57fa\u77f3\uff0c\u5176\u4ea4\u4e92\u6027\u975e\u5e38\u5f3a\u3002\u8fd9\u4f53\u73b0\u5728\u4ee5\u4e0b\u65b9\u9762\uff1a\u4e8b\u4ef6\u9a71\u52a8\u7f16\u7a0b\u3001DOM\u64cd\u4f5c […]","protected":false},"author":3,"featured_media":167091,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/167076"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=167076"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/167076\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/167091"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=167076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=167076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=167076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}