{"id":166364,"date":"2024-05-08T15:35:08","date_gmt":"2024-05-08T07:35:08","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/166364.html"},"modified":"2024-05-08T15:35:12","modified_gmt":"2024-05-08T07:35:12","slug":"javascript%e6%80%8e%e4%b9%88%e5%90%af%e7%94%a8","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/166364.html","title":{"rendered":"javascript\u600e\u4e48\u542f\u7528"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/26233418\/b28cf94e-1bde-42de-9a2a-188ad09b6564.webp\" alt=\"javascript\u600e\u4e48\u542f\u7528\" 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<code>&lt;script&gt;<\/code> \u6807\u7b7e\u76f4\u63a5\u5728HTML\u4e2d\u5185\u5d4cJavaScript\u4ee3\u7801\u662f\u4e00\u79cd\u5feb\u901f\u4e14\u76f4\u63a5\u7684\u65b9\u6cd5\u3002\u8fd9\u79cd\u65b9\u5f0f\u6700\u9002\u5408\u7528\u4e8e\u8f83\u5c0f\u7684\u4ee3\u7801\u91cf\u6216\u662f\u5bf9\u6027\u80fd\u8981\u6c42\u4e0d\u662f\u975e\u5e38\u4e25\u683c\u7684\u573a\u5408\u3002\u5c06JavaScript\u4ee3\u7801\u76f4\u63a5\u5199\u5728 <code>&lt;script&gt;<\/code> \u6807\u7b7e\u4e2d\u53ef\u4ee5\u786e\u4fdd\u5728\u52a0\u8f7dHTML\u9875\u9762\u65f6\uff0c\u6d4f\u89c8\u5668\u4f1a\u81ea\u52a8\u89e3\u6790\u548c\u6267\u884c\u8fd9\u4e9b\u811a\u672c\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u76f4\u63a5\u5d4c\u5165JavaScript\u4ee3\u7801<\/strong>\uff1a\u5728HTML\u6587\u4ef6\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>&lt;script&gt;<\/code> \u6807\u7b7e\u76f4\u63a5\u5d4c\u5165JavaScript\u4ee3\u7801\u3002\u8fd9\u79cd\u65b9\u5f0f\u5141\u8bb8\u5f00\u53d1\u8005\u5feb\u901f\u5730\u5728\u9875\u9762\u4e2d\u52a0\u5165\u4ea4\u4e92\u6027\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u5728 <code>&lt;body&gt;<\/code> \u6807\u7b7e\u7684\u672b\u5c3e\u6dfb\u52a0JavaScript\u4ee3\u7801\u53ef\u4ee5\u786e\u4fddDOM\u5143\u7d20\u5df2\u7ecf\u88ab\u5b8c\u5168\u52a0\u8f7d\uff0c\u4ece\u800c\u907f\u514d\u64cd\u7eb5\u5c1a\u672a\u52a0\u8f7d\u7684\u5143\u7d20\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u5185\u5d4c\u811a\u672c\u7684\u4f4d\u7f6e\u95ee\u9898<\/strong>\uff1a\u901a\u5e38\u63a8\u8350\u5c06\u5185\u5d4c\u7684JavaScript\u4ee3\u7801\u653e\u5728HTML\u9875\u9762\u7684\u5e95\u90e8\uff0c\u5373<code>&lt;\/body&gt;<\/code>\u6807\u7b7e\u4e4b\u524d\u3002\u8fd9\u6837\u505a\u7684\u539f\u56e0\u662f\u4e3a\u4e86\u63d0\u9ad8\u9875\u9762\u52a0\u8f7d\u7684\u901f\u5ea6\u3002\u5f53\u6d4f\u89c8\u5668\u89e3\u6790\u5230 <code>&lt;script&gt;<\/code> \u6807\u7b7e\u65f6\uff0c\u5b83\u4f1a\u505c\u6b62\u89e3\u6790\u5269\u4f59\u7684HTML\uff0c\u8f6c\u800c\u53bb\u52a0\u8f7d\u548c\u6267\u884cJavaScript\u4ee3\u7801\u3002\u5982\u679c\u5c06\u4ee3\u7801\u653e\u5728\u5e95\u90e8\uff0c\u53ef\u4ee5\u786e\u4fdd\u5728\u6267\u884cJavaScript\u4e4b\u524d\u9875\u9762\u4e0a\u7684DOM\u5143\u7d20\u90fd\u5df2\u7ecf\u52a0\u8f7d\u5b8c\u6bd5\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e8c\u3001\u4f7f\u7528\u5916\u90e8JavaScript\u6587\u4ef6<\/h3>\n<\/p>\n<p><p>\u5bf9\u4e8e\u8f83\u5927\u7684\u9879\u76ee\uff0c\u6216\u8005\u5f53\u9700\u8981\u5728\u591a\u4e2a\u9875\u9762\u4e0a\u590d\u7528\u76f8\u540c\u7684JavaScript\u4ee3\u7801\u65f6\uff0c\u4f7f\u7528\u5916\u90e8\u6587\u4ef6\u5f15\u5165\u7684\u65b9\u5f0f\u66f4\u52a0\u5408\u9002\u3002\u8fd9\u4e0d\u4ec5\u6709\u52a9\u4e8e\u4ee3\u7801\u7684\u7ec4\u7ec7\u548c\u7ef4\u62a4\uff0c\u800c\u4e14\u53ef\u4ee5\u63d0\u9ad8\u9875\u9762\u52a0\u8f7d\u901f\u5ea6\uff0c\u56e0\u4e3a\u6d4f\u89c8\u5668\u4f1a\u7f13\u5b58\u5916\u90e8\u7684JS\u6587\u4ef6\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u901a\u8fc7SRC\u5c5e\u6027\u5f15\u5165<\/strong>\uff1a\u5728HTML\u6587\u6863\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 <code>&lt;script&gt;<\/code> \u6807\u7b7e\u7684 <code>src<\/code> \u5c5e\u6027\u6765\u5f15\u7528\u5916\u90e8\u7684JavaScript\u6587\u4ef6\u3002\u8fd9\u79cd\u65b9\u6cd5\u5141\u8bb8\u5f00\u53d1\u8005\u5c06JavaScript\u4ee3\u7801\u7ec4\u7ec7\u5728\u72ec\u7acb\u7684\u6587\u4ef6\u4e2d\uff0c\u901a\u8fc7\u7b80\u5355\u7684\u94fe\u63a5\u5c31\u53ef\u4ee5\u5728\u591a\u4e2a\u9875\u9762\u4e2d\u590d\u7528\u8fd9\u4e9b\u4ee3\u7801\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u4f18\u5316\u5916\u90e8\u811a\u672c\u7684\u52a0\u8f7d<\/strong>\uff1a\u4e3a\u4e86\u907f\u514d\u5916\u90e8JavaScript\u6587\u4ef6\u963b\u585e\u9875\u9762\u7684\u52a0\u8f7d\uff0c\u53ef\u4ee5\u91c7\u7528\u5f02\u6b65\u52a0\u8f7d\uff08<code>async<\/code>\uff09\u6216\u5ef6\u8fdf\u52a0\u8f7d\uff08<code>defer<\/code>\uff09\u7684\u65b9\u5f0f\u3002<code>async<\/code> \u5c5e\u6027\u4f1a\u8ba9\u6d4f\u89c8\u5668\u5f02\u6b65\u52a0\u8f7dJavaScript\u6587\u4ef6\uff0c\u4e0d\u4f1a\u963b\u585eHTML\u7684\u89e3\u6790\uff1b\u800c <code>defer<\/code> \u5c5e\u6027\u5219\u4f1a\u8ba9\u811a\u672c\u5728\u6587\u6863\u89e3\u6790\u5b8c\u6210\u540e\uff0cDOMContentLoaded\u4e8b\u4ef6\u89e6\u53d1\u4e4b\u524d\u6267\u884c\u3002\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u9875\u9762\u7684\u52a0\u8f7d\u6027\u80fd\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u4e09\u3001\u5728HTML\u6587\u6863\u4e2d\u5d4c\u5165JavaScript\u7684\u6700\u4f73\u5b9e\u8df5<\/h3>\n<\/p>\n<p><p>\u867d\u7136\u5728HTML\u6587\u6863\u4e2d\u542f\u7528JavaScript\u7684\u65b9\u6cd5\u76f8\u5bf9\u7b80\u5355\uff0c\u4f46\u4e3a\u4e86\u63d0\u9ad8\u6027\u80fd\u548c\u7ef4\u62a4\u6027\uff0c\u9075\u5faa\u4e00\u4e9b\u6700\u4f73\u5b9e\u8df5\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u907f\u514d\u4f7f\u7528\u5185\u8054\u4e8b\u4ef6\u5904\u7406\u5668<\/strong>\uff1a\u5728HTML\u6807\u7b7e\u7684\u5c5e\u6027\u4e2d\u76f4\u63a5\u5199\u5165JavaScript\u4ee3\u7801\uff08\u5982<code>onclick=&quot;myFunction()&quot;<\/code>\uff09\u867d\u7136\u65b9\u4fbf\uff0c\u4f46\u8fd9\u79cd\u505a\u6cd5\u4f1a\u8ba9HTML\u548cJavaScript\u7684\u4ee3\u7801\u7d27\u5bc6\u8026\u5408\uff0c\u4e0d\u5229\u4e8e\u7ef4\u62a4\u548c\u6d4b\u8bd5\u3002\u4f7f\u7528document.getElementById\u6216\u5176\u4ed6\u9009\u62e9\u5668\u5728\u5916\u90e8\u6216\u5185\u5d4c\u7684\u6807\u7b7e\u4e2d\u7ed1\u5b9a\u4e8b\u4ef6\u66f4\u52a0\u7075\u6d3b\u4e14\u53ef\u7ef4\u62a4\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u5229\u7528\u73b0\u4ee3JavaScript\u548cWeb API<\/strong>\uff1a\u968f\u7740ECMAScript\u6807\u51c6\u7684\u4e0d\u65ad\u53d1\u5c55\uff0cJavaScript\u8bed\u8a00\u672c\u8eab\u4e5f\u5728\u4e0d\u65ad\u8fdb\u5316\u3002\u5229\u7528\u73b0\u4ee3JavaScript\u7684\u65b0\u7279\u6027\u4ee5\u53caWeb API\uff0c\u53ef\u4ee5\u7f16\u5199\u51fa\u66f4\u7b80\u6d01\u3001\u66f4\u9ad8\u6548\u7684\u4ee3\u7801\u3002\u4f8b\u5982\uff0c\u4f7f\u7528<code>fetch<\/code> API\u8fdb\u884c\u7f51\u7edc\u8bf7\u6c42\u3001\u4f7f\u7528<code>Promise<\/code>\u548c<code>Async\/Aw<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>t<\/code>\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u7b49\uff0c\u8fd9\u4e9b\u90fd\u662f\u73b0\u4ee3Web\u5f00\u53d1\u4e2d\u5e38\u7528\u4e14\u5f3a\u5927\u7684\u7279\u6027\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><h3>\u56db\u3001\u6027\u80fd\u4f18\u5316\u548c\u5f02\u6b65\u52a0\u8f7d<\/h3>\n<\/p>\n<p><p>\u4e3a\u4e86\u63d0\u5347\u7528\u6237\u4f53\u9a8c\uff0c\u786e\u4fdd\u9875\u9762\u5feb\u901f\u54cd\u5e94\uff0c\u5bf9JavaScript\u7684\u52a0\u8f7d\u548c\u6267\u884c\u8fdb\u884c\u4f18\u5316\u662f\u975e\u5e38\u5173\u952e\u7684\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u538b\u7f29\u548c\u5408\u5e76JavaScript\u6587\u4ef6<\/strong>\uff1a\u5bf9\u4e8e\u4f7f\u7528\u5916\u90e8\u6587\u4ef6\u7684\u9879\u76ee\uff0c\u538b\u7f29\u548c\u5408\u5e76JavaScript\u53ef\u4ee5\u51cf\u5c11\u6587\u4ef6\u7684\u5927\u5c0f\u548c\u8bf7\u6c42\u6570\uff0c\u4ece\u800c\u52a0\u901f\u9875\u9762\u52a0\u8f7d\u3002\u4f7f\u7528\u5de5\u5177\u5982Webpack\u6216Gulp\u53ef\u4ee5\u81ea\u52a8\u5316\u8fd9\u4e00\u8fc7\u7a0b\uff0c\u5927\u5e45\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u4f7f\u7528Service Worker\u548c\u7f13\u5b58\u7b56\u7565<\/strong>\uff1aService Worker\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u7f13\u5b58\u80fd\u529b\uff0c\u53ef\u4ee5\u5e2e\u52a9\u5f00\u53d1\u8005\u63a7\u5236\u6587\u4ef6\u7684\u7f13\u5b58\u548c\u66f4\u65b0\u3002\u5408\u7406\u5229\u7528Service Worker\u548c\u6d4f\u89c8\u5668\u7f13\u5b58\u53ef\u4ee5\u663e\u8457\u52a0\u5feb\u91cd\u590d\u8bbf\u95ee\u65f6\u7684\u52a0\u8f7d\u901f\u5ea6\uff0c\u6539\u5584\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u65b9\u6cd5\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u6210\u529f\u5730\u5728HTML\u6587\u6863\u4e2d\u542f\u7528JavaScript\uff0c\u8fd8\u53ef\u4ee5\u786e\u4fdd\u4ee3\u7801\u7684\u7ec4\u7ec7\u3001\u7ef4\u62a4\u4ee5\u53ca\u6027\u80fd\u4f18\u5316\u90fd\u8fbe\u5230\u8f83\u597d\u7684\u6807\u51c6\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>\u95ee\u98981\uff1a\u5982\u4f55\u5728\u7f51\u9875\u4e2d\u542f\u7528JavaScript\uff1f<\/strong><\/p>\n<p>\u9996\u5148\uff0c\u5728HTML\u9875\u9762\u4e2d\u7684\u6807\u7b7e\u5185\u63d2\u5165\u6807\u7b7e\uff0c\u7136\u540e\u4f7f\u7528src\u5c5e\u6027\u6307\u5b9a\u8981\u94fe\u63a5\u7684JavaScript\u6587\u4ef6\u7684\u8def\u5f84\u3002\u8fd9\u5c06\u4f7f\u6d4f\u89c8\u5668\u5728\u52a0\u8f7d\u9875\u9762\u65f6\u52a0\u8f7d\u5e76\u6267\u884cJavaScript\u4ee3\u7801\u3002<\/p>\n<p>\u8bed\u6cd5\u793a\u4f8b\uff1a<\/p>\n<pre><code 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