Asp.net操作cookie大全

实例代码:
   下面是写cookie
    HttpCookie cookie = new HttpCookie("Info");//定义cookie对象以及名为Info的项
    DateTime dt = DateTime.Now;//定义时间对象
    TimeSpan ts=new TimeSpan(1,0,0,0);//cookie有效作用时间,具体查msdn
    cookie.Expires = dt.Add(ts);//添加作用时间
    cookie.Values.Add("user","cxbkkk");//增加属性
    cookie.Values.Add("userid","1203");
    Response.AppendCookie(cookie);//确定写入cookie中
        读取cookie
    if(Request.Cookies["Info"]!=null)
    {
    string temp=Convert.ToString(Request.Cookies["Info"].Values["user"])+" "+Convert.ToString(Request.Cookies["Info"].Values["userid"]);
    //读全部就用Request.Cookies["Info"].Value
    if(temp=="")
    {
    Response.Write("空");
    }
    else
    Response.Write(temp);
    }
    else
   {
   Response.Write("error");
   }

        修改cookie
   Response.Cookies["Info"]["user"] = "2";
   Response.Cookies["Info"].Expires = DateTime.Now.AddDays(1);
       
 删除cookie下的属性
   HttpCookie acookie=Request.Cookies["Info"];
   acookie.Values.Remove("userid");
   acookie.Expires = DateTime.Now.AddDays(1);

       acookie.Domain=http://www.sunwale.com/;
   Response.Cookies.Add(acookie);
        删除所有cookie,就是设置过期时间为现在就行了
   int limit=Request.Cookies.Count - 1;
   for(int i=0;i<limit;i++)
   {
   acookie = Request.Cookies(i)
   acookie.Expires = DateTime.Now.AddDays(-1)
   Response.Cookies.Add(acookie)
   }

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