代碼后就不可以用了。求解釋啊！昨天調試了一天了，今天又弄了好久，實在是沒辦法了。代碼如下：// JavaScript Documentvar xmlHttp;function sendmsg(s){var messag=""if (s=="2"){message=document.getElementById("message").innerHTML;if(messag==""){alert("請輸入內容");return}}}function sendmg(s){var message=""if (s=="2"){message=document.getElementById("message").innerHTML;if(message==""){alert("請輸入內容");return}}xmlHttp=GetXmlHttpObject()if (xmlHttp==null){alert ("您好！您的瀏覽器不支持ajax技術，請升級或使用較新版本的ie瀏覽器。");return} var url="qingtan_ajax.php"url=url+"?t="+Math.random()xmlHttp.open("POST",url,true); xmlHttp.onreadystatechange=stateChanged xmlHttpRequest.setRequestHeder("Content-Type","application/x-www-form-urlencoded;charset=gb2312");xmlHttpRequest.send("author=阿墨&message="+message+"&touser=默默"); }function stateChanged() { if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ if (xmlHttp.responseText==""){alert("nothing returned"); }if(xmlHttp.responseText<>"norefresh"){document.getElementById("Layer6").innerHTML=xmlHttp.responseText }} }function GetXmlHttpObject(){var xmlHttp=null;try{// Firefox, Opera 8.0+, SafarixmlHttp=new XMLHttpRequest();}catch (e){// Internet Explorertry{xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");}catch (e){xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");}}return xmlHttp;}