{"id":281,"date":"2024-05-07T22:09:53","date_gmt":"2024-05-07T14:09:53","guid":{"rendered":"http:\/\/www.cmd137blog.top\/?p=281"},"modified":"2024-05-07T22:09:54","modified_gmt":"2024-05-07T14:09:54","slug":"%e8%87%aa%e9%a1%b6%e5%90%91%e4%b8%8bweb%e5%bc%80%e5%8f%91-1-%e5%89%8d%e7%ab%af%e9%83%a8%e5%88%86-4-ajax","status":"publish","type":"post","link":"http:\/\/www.cmd137blog.top\/?p=281","title":{"rendered":"\u81ea\u9876\u5411\u4e0bWeb\u5f00\u53d1-1 \u524d\u7aef\u90e8\u5206-4 Ajax"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">1 \u7b80\u4ecb\uff1a<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6982\u5ff5\uff1a<strong>\u5f02\u6b65<\/strong>\u7684JS\u4e0eXML\u3002<\/li>\n\n\n\n<li>\u4f5c\u7528\uff1a\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u4ea4\u6362\uff1a\u7ed9\u670d\u52a1\u5668\u53d1\u9001\u8bf7\u6c42\uff0c\u83b7\u53d6\u670d\u52a1\u5668\u54cd\u5e94\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u5f02\u6b65\u4ea4\u4e92\uff1a\u53ef\u4ee5\u5728\u4e0d\u91cd\u65b0\u52a0\u8f7d\u6574\u4e2a\u9875\u9762\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0e\u670d\u52a1\u5668\u4ea4\u6362\u6570\u636e\u5e76\u66f4\u65b0\u90e8\u5206\u7f51\u9875\u7684\u6280\u672f\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>AJAX \u5e76\u975e\u7f16\u7a0b\u8bed\u8a00\u3002<\/p>\n\n\n\n<p>AJAX \u4ec5\u4ec5\u7ec4\u5408\u4e86\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6d4f\u89c8\u5668\u5185\u5efa\u7684 XMLHttpRequest \u5bf9\u8c61\uff08\u4ece web \u670d\u52a1\u5668\u8bf7\u6c42\u6570\u636e\uff09<\/li>\n\n\n\n<li>JavaScript \u548c HTML DOM\uff08\u663e\u793a\u6216\u4f7f\u7528\u6570\u636e\uff09<\/li>\n<\/ul>\n\n\n\n<p>Ajax \u662f\u4e00\u4e2a\u4ee4\u4eba\u8bef\u5bfc\u7684\u540d\u79f0\u3002Ajax \u5e94\u7528\u7a0b\u5e8f\u53ef\u80fd\u4f7f\u7528 XML \u6765\u4f20\u8f93\u6570\u636e\uff0c\u4f46\u5c06\u6570\u636e\u4f5c\u4e3a\u7eaf\u6587\u672c\u6216 JSON \u6587\u672c\u4f20\u8f93\u4e5f\u540c\u6837\u5e38\u89c1\u3002<\/p>\n\n\n\n<p>Ajax \u5141\u8bb8\u901a\u8fc7\u4e0e\u573a\u666f\u540e\u9762\u7684 Web \u670d\u52a1\u5668\u4ea4\u6362\u6570\u636e\u6765\u5f02\u6b65\u66f4\u65b0\u7f51\u9875\u3002\u8fd9\u610f\u5473\u7740\u53ef\u4ee5\u66f4\u65b0\u7f51\u9875\u7684\u90e8\u5206\uff0c\u800c\u4e0d\u9700\u8981\u91cd\u65b0\u52a0\u8f7d\u6574\u4e2a\u9875\u9762\u3002<\/p>\n\n\n\n<p><strong>\u539f\u751fAjax<\/strong>\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Function loadDoc()\n\nfunction loadDoc() {\n  var xhttp = new XMLHttpRequest();\n  xhttp.onreadystatechange = function() {\n    if (this.readyState == 4 &amp;&amp; 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