本文執行個體講述了ajax基本通用代碼。分享給大家供大家參考，具體如下：
<html><head><script type="text/JavaScript">var xmlhttpfunction loadXMLDoc(url){ // code for Mozilla, etc. if (window.XMLHttpRequest) { xmlhttp=new XMLHttpRequest() xmlhttp.onreadystatechange=state_Change xmlhttp.open("GET",url,true) xmlhttp.send(null) } // code for IE else if (window.ActiveXObject) { xmlhttp=new ActiveXObject("Microsoft.XMLHTTP") if (xmlhttp) { xmlhttp.onreadystatechange=state_Change xmlhttp.open("GET",url,true) xmlhttp.send() } }}function state_Change(){ // if xmlhttp shows "loaded" if (xmlhttp.readyState==4) { // if "OK" if (xmlhttp.status==200) { document.getElementById('T1').innerHTML=xmlhttp.responseText } else { alert("Problem retrieving data:" + xmlhttp.statusText) } }}</script></head><body onload="loadXMLDoc('test_xmlhttp.txt')"><div id="T1" style="border:1px solid black;height:40;width:300"></div><br /><button onclick="loadXMLDoc('test_xmlhttp2.txt')">Click</button></body></html>
更多關於ajax相關內容感興趣的讀者可查看本站專題：《jquery中Ajax用法總結》、《JavaScript中ajax操作技巧總結》、《PHP+ajax技巧與應用小結》及《asp.net ajax技巧總結專題》。
希望本文所述對大家ajax程式設計有所協助。
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