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JScript code:

var xhr=false;
if(window.XMLHttpRequest) {
xhr=new XMLHttpRequest();
alert("XMLHttpRequest");//ΪʲôIE7£¬8»áÊÇÕâ¸ö£¿£¿£¿
} else {
try {
xhr=new ActiveXObject("Msxml2.XMLHTTP");//IE6
alert('new ActiveXObject("Msxml2.XMLHTTP");');
}catch(e){
try {
xhr=new ActiveXObject("Microsoft.XMLHTTP");//Õâ¸öIE6Ò²ÐУ¬
alert('new ActiveXObject("Microsoft.XMLHTTP");');
}catch(e){}
}
}
if(!xhr) {
alert("²»Ö§³ÖµÄä¯ÀÀÆ÷");
}
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Asp.net Ajax ²»Äܰó¶¨Ê¼þ

HTML code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!DOCTYPE html PUBLIC "-//W3C//DT ......

Asp.net AjaxÖÐÃæÏò¶ÔÏóµÄʹÓÃ

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......

Ajax WebServive·½·¨´«µÝʹÓÃjavascript±äÁ¿µÄÎÊÌâ

function Fun1(para1,para2)
{
  Fun2(para1);
  ....
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jQuery Ajax Ôõô»ñÈ¡ÁíÒ»Ò³ Response.WriteÊý¾Ý£¿

C# code:
<script type="text/javascript">

function get(aid){
$.ajax({
url:"t2.aspx?id="+aid+" & time="+new Date().toString(),
ty ......
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