Ajax通訊原理XMLHttpRequest

html xmlns="http://www.w3.org/1999/xhtml">
head runat="server">
title>無(wú)標(biāo)題頁(yè)/title>
script type="text/javascript">
function getName(){
var xmlhttp;
if(window.XMLHttpRequest){
xmlhttp=new XMLHttpRequest();
}else{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function(){
if(xmlhttp.readyState==4 xmlhttp.status==200){
alert("你好："+xmlhttp.responseText);
}
}
xmlhttp.open("post","Default.aspx?id=gname",true);
xmlhttp.send();
}
/script>
/head>
body>
form id="form1" runat="server">
div> input id="Button1" type="button" value="button" onclick="getName()" />/p>
nbsp;/div>
/form>
/body>
/html>

protected void Page_Load(object sender, EventArgs e)
{
if (Request["id"]!=null)
{
Response.Write("張三");
Response.End();
}
}