{"id":3416,"date":"2024-11-10T09:55:17","date_gmt":"2024-11-10T01:55:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3416\/"},"modified":"2024-11-10T09:55:17","modified_gmt":"2024-11-10T01:55:17","slug":"js-%e5%a6%82%e4%bd%95%e5%8a%a8%e6%80%81%e7%9a%84%e5%8a%a0%e8%bd%bdjs","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3416\/","title":{"rendered":"js \u5982\u4f55\u52a8\u6001\u7684\u52a0\u8f7djs"},"content":{"rendered":"<blockquote><p>\n  javascript \u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\u52a8\u6001 js \u52a0\u8f7d\uff1a\u521b\u5efa\u811a\u672c\u5143\u7d20\uff08document.createelement(&#8216;script&#8217;)\uff09\u4f7f\u7528 xmlhttprequest \u53d1\u9001\u8bf7\u6c42\uff08xmlhttprequest (xhr)\uff09\u5728 html \u4e2d\u6dfb\u52a0\u811a\u672c\u6807\u7b7e\uff08script \u6807\u7b7e\uff09\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/08\/2024110811552027621.jpg\" class=\"aligncenter\" title=\"js \u5982\u4f55\u52a8\u6001\u7684\u52a0\u8f7djs\u63d2\u56fe\" alt=\"js \u5982\u4f55\u52a8\u6001\u7684\u52a0\u8f7djs\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 JavaScript \u4e2d\u52a8\u6001\u52a0\u8f7d JS<\/strong><\/p>\n<p>\u5728 JavaScript \u4e2d\u52a8\u6001\u52a0\u8f7d JS \u5141\u8bb8\u5f00\u53d1\u8005\u6839\u636e\u9700\u8981\u5728\u8fd0\u884c\u65f6\u52a0\u8f7d\u548c\u6267\u884c\u5916\u90e8 JavaScript \u4ee3\u7801\u3002\u8fd9\u5728\u521b\u5efa\u6a21\u5757\u5316\u3001\u54cd\u5e94\u5f0f\u548c\u53ef\u7ef4\u62a4\u7684 Web \u5e94\u7528\u7a0b\u5e8f\u65f6\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p><strong>\u65b9\u6cd5<\/strong><\/p>\n<p>\u52a8\u6001\u52a0\u8f7d JS \u4e3b\u8981\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\uff1a<\/p>\n<ul>\n<li> <strong>document.createElement(&#8216;script&#8217;)<\/strong>\uff1a\u521b\u5efa\u4e00\u4e2a\u811a\u672c\u5143\u7d20\uff0c\u7136\u540e\u5c06\u5176\u6dfb\u52a0\u5230 DOM \u4e2d\u3002\u5f53\u811a\u672c\u5143\u7d20\u6267\u884c\u65f6\uff0c\u5b83\u4f1a\u4e0b\u8f7d\u5e76\u6267\u884c\u5916\u90e8 JavaScript \u6587\u4ef6\u3002<\/li>\n<li> <strong>XMLHttpRequest (XHR)<\/strong>\uff1a\u4f7f\u7528 XHR \u5411\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\u4ee5\u83b7\u53d6\u5916\u90e8 JavaScript \u6587\u4ef6\u3002\u6536\u5230\u54cd\u5e94\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7 eval() \u6216 new Function() \u6267\u884c\u5b83\u3002<\/li>\n<li> <strong>script \u6807\u7b7e<\/strong>\uff1a\u76f4\u63a5\u5728 HTML \u4e2d\u6dfb\u52a0 script \u6807\u7b7e\uff0csrc \u5c5e\u6027\u6307\u5411\u5916\u90e8 JavaScript \u6587\u4ef6\u3002\u6d4f\u89c8\u5668\u5728\u89e3\u6790\u9875\u9762\u65f6\u4f1a\u81ea\u52a8\u4e0b\u8f7d\u5e76\u6267\u884c\u8be5\u6587\u4ef6\u3002<\/li>\n<\/ul>\n<p><strong>\u6b65\u9aa4<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e9b\u52a8\u6001\u52a0\u8f7d JS \u7684\u5177\u4f53\u6b65\u9aa4\uff1a<\/p>\n<p><strong>\u4f7f\u7528 document.createElement(&#8216;script&#8217;)<\/strong><\/p>\n<pre>const script = document.createElement('script');\nscript.src = 'script.js';\ndocument.head.appendChild(script);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u4f7f\u7528 XHR<\/strong><\/p>\n<pre>function loadScript(url) {\n  const xhr = new XMLHttpRequest();\n  xhr.open('GET', url, true);\n  xhr.onload = function() {\n    if (xhr.status === 200) {\n      eval(xhr.responseText); \/\/ \u6216\u8005 new Function(xhr.responseText)()\n    }\n  };\n  xhr.send();\n}<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u4f7f\u7528 script \u6807\u7b7e<\/strong><\/p>\n<pre>&lt;script src=\"script.js\"&gt;&lt;\/script&gt;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>\u6ce8\u610f<\/strong><\/p>\n<ul>\n<li>\u52a8\u6001\u52a0\u8f7d JS \u53ef\u80fd\u4f1a\u56e0\u8de8\u57df\u9650\u5236\u7684\u95ee\u9898\u800c\u5931\u8d25\u3002<\/li>\n<li>\u52a8\u6001\u52a0\u8f7d JS \u540e\uff0c\u9700\u8981\u786e\u4fdd\u5728\u811a\u672c\u6267\u884c\u5b8c\u6bd5\u540e\u518d\u4f7f\u7528\u5176\u5185\u5bb9\u3002<\/li>\n<li>\u8c28\u614e\u4f7f\u7528 eval()\uff0c\u56e0\u4e3a\u5b83\u5b58\u5728\u5b89\u5168\u98ce\u9669\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjs \u5982\u4f55\u52a8\u6001\u7684\u52a0\u8f7djs\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>javascript \u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\u52a8\u6001 js \u52a0\u8f7d\uff1a\u521b\u5efa\u811a\u672c\u5143\u7d20\uff08document.createelement(&#8216;script&#8217;)\uff09\u4f7f\u7528 xmlhttprequest \u53d1\u9001\u8bf7\u6c42\uff08xmlhttprequest (xhr)\uff09\u5728 html \u4e2d\u6dfb\u52a0\u811a\u672c\u6807\u7b7e\uff08script \u6807\u7b7e\uff09 \u5982\u4f55\u5728 JavaScript \u4e2d\u52a8\u6001\u52a0\u8f7d JS \u5728 JavaScript \u4e2d\u52a8\u6001\u52a0\u8f7d JS \u5141\u8bb8\u5f00\u53d1\u8005\u6839\u636e\u9700\u8981\u5728\u8fd0\u884c\u65f6\u52a0\u8f7d\u548c\u6267\u884c\u5916\u90e8 JavaScript \u4ee3\u7801\u3002\u8fd9\u5728\u521b\u5efa\u6a21\u5757\u5316\u3001\u54cd\u5e94\u5f0f\u548c\u53ef\u7ef4\u62a4\u7684 Web \u5e94\u7528\u7a0b\u5e8f\u65f6\u975e\u5e38\u6709\u7528\u3002 \u65b9\u6cd5 \u52a8\u6001\u52a0\u8f7d JS \u4e3b\u8981\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u5b9e\u73b0\uff1a document.createElement(&#8216;script&#8217;)\uff1a\u521b\u5efa\u4e00\u4e2a\u811a\u672c\u5143\u7d20\uff0c\u7136\u540e\u5c06\u5176\u6dfb\u52a0\u5230 DOM \u4e2d\u3002\u5f53\u811a\u672c\u5143\u7d20\u6267\u884c\u65f6\uff0c\u5b83\u4f1a\u4e0b\u8f7d\u5e76\u6267\u884c\u5916\u90e8 JavaScript \u6587\u4ef6\u3002 XMLHttpRequest (XHR)\uff1a\u4f7f\u7528 XHR \u5411\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\u4ee5\u83b7\u53d6\u5916\u90e8 JavaScript \u6587\u4ef6\u3002\u6536\u5230\u54cd\u5e94\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7 eval() \u6216 new Function() \u6267\u884c\u5b83\u3002 script \u6807\u7b7e\uff1a\u76f4\u63a5\u5728 HTML \u4e2d\u6dfb\u52a0 script \u6807\u7b7e\uff0csrc \u5c5e\u6027\u6307\u5411\u5916\u90e8 JavaScript \u6587\u4ef6\u3002\u6d4f\u89c8\u5668\u5728\u89e3\u6790\u9875\u9762\u65f6\u4f1a\u81ea\u52a8\u4e0b\u8f7d\u5e76\u6267\u884c\u8be5\u6587\u4ef6\u3002 \u6b65\u9aa4 \u4ee5\u4e0b\u662f\u4e00\u4e9b\u52a8\u6001\u52a0\u8f7d JS [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3416","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3416","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=3416"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3416\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=3416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=3416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=3416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}