cookie细节问题

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace Web1.Day4
{
/// <summary>cookies的设置
/// 服务器端做
/// </summary>
public class CookiesTest1 : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/html";
//1、调用Cookies这个类 来实例化一个Cookie对象，并命名这个Cookie对象
HttpCookie cookie = new HttpCookie("test");
//2、对这个cookie进行赋值
cookie.Value = "xiaochuanling.cn";
//3、通过Response对象的方法设置cookies报文中，并由报文传到浏览器端
context.Response.SetCookie(cookie);
/*
//设置值页面一个（更新cookie信息的一个写法）
context.Response.SetCookie(new HttpCookie("test1","xiaochuanling.com"));
*
* 
读取值的页面
string cookes = context.Request.Cookies["test1"].Value;
*/

/*
//-------------cookie还可以这样设置
context.Response.Cookies["test"].Value="xiaochuanling.com";
context.Response.Cookies["test"].Expires = DateTime.Now.AddDays(3);//3天后过期
* 
*/
}
public bool IsReusable
{
get
{
return false;
}
}
}
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace Web1.Day4
{
/// <summary>
/// 服务器端读取浏览器传递过来的cookie信息
/// </summary>
public class CookiesTest2 : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/html";
//cookie就是键值对
//1、用Request的属性读取Cookie信息
HttpCookie cookie = context.Request.Cookies["test"];
//2、如果cookie信息存在，就读出，否则为null
context.Response.Write(cookie==null?"没有test的cookie信息":cookie.Value);
}
public bool IsReusable
{
get
{
return false;
}
}
}
}