-------------------------********************************html中
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
</head>
<body>
<form action="Add.ashx">
<input type="hidden" name="ispostback" value ="true" />
<input type="text"name="number" value ="@a"/>
<input type="submit" value="提交"/>
</form>
</body>
</html>
--------------------------------------------Add.ashx
<%@ WebHandler Language="C#" Class="Add" %>
using System;
using System.Web;
public class Add : IHttpHandler
{
public void ProcessRequest (HttpContext context)
{
context.Response.ContentType = "text/html";//响应的数据时html
string ispostback = context.Request["ispostback"];//取得用户提交过来的name为ispostback的表单的值
string number = context.Request["number"];
if (ispostback == "true")
{
int i = Convert.ToInt32(number);//类型转换
i++;//i自增
number = i.ToString();//将实例的值转换为等效的字符串的表示形式
}
else
{
number = "0";//文本框中的数字从0 开始增长
}
string fullpath = context.Server.MapPath("Add.htm");//得到全部的路径
string content = System.IO.File.ReadAllText(fullpath);//加载模版
content = content.Replace("@a",number);//把我自己定义的@a替换为number
context.Response.Write(content);//将字符串写回浏览器端
//context.Response.Write("Hello World");
}
public bool IsReusable {
get {
return false;
}
}
}