放在首页是因为个人觉得网上许多方案巨麻烦，而且不好用。只是一个小经验，大家分享，用不了多少时间就可以看完，免得以后要解决这个问题时从网上找浪费大家宝贵的时间。
1<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="AjaxTest._Default" %>
2
3<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "
http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
4<html xmlns="
http://www.w3.org/1999/xhtml";>
5<head runat="server">
6 <title>Untitled Page</title>
7
8 <script language="javascript" type="text/javascript" src="User.Base.js"></script>
9
10 <script language="javascript" type="text/javascript">
11 function Check()
12 {
13 var request=new HttpRequest().Request();
14 request.onreadystatechange=function (){
15 if(request.readyState==4)
16 {
17 if(request.status==200)
18 {
19 alert(request.responseText);
20 }
21 else
22 {
23 alert(request.responseText);
24 }
25 }
26 }
27 var value=document.getElementById("val").value;
28 request.open("POST","Default.aspx?Value="+value,true);
29 //设置防止乱码的方法，只要一句话就行
30 request.setRequestHeader("Content-Type","text/html;charset=gb2312");
31 request.send(null);
32 }
33 </script>
34
35</head>
36<body>
37 <form id="form1" runat="server">
38 <div>
39 <input id="val" type="text" />
40 </div>
41 </form>
42</body>
43</html>
44
