关于asp.net c#中对cookie的操作

下面是写cookie

1 HttpCookie cookie = new HttpCookie("Info");//定义cookie对象以及名为Info的项

2 DateTime dt = DateTime.Now;//定义时间对象

3 TimeSpan ts=new TimeSpan(1,0,0,0);//cookie有效作用时间，具体查msdn

4 cookie.Expires = dt.Add(ts);//添加作用时间

5 cookie.Values.Add("user","cxbkkk");//增加属性

6 cookie.Values.Add("userid","1203");

7 Response.AppendCookie(cookie);//确定写入cookie中

读取cookie

1 if(Request.Cookies["Info"]!=null)

2 {

3 string temp=Convert.ToString(Request.Cookies["Info"].Values["user"])+" "+Convert.ToString(Request.Cookies["Info"].Values["userid"]);

4 //读全部就用Request.Cookies["Info"].Value)

5 if(temp=="")

6 {

7 Response.Write("空");

8 }

9 else

10 Response.Write(temp);

11 }

12 else

13 {

14 Response.Write("error");

15 }

修改cookie

1 Response.Cookies["Info"]["user"] = "2";

2 Response.Cookies["Info"].Expires = DateTime.Now.AddDays(1);

删除cookie下的属性

1 HttpCookie acookie=Request.Cookies["Info"];

2 acookie.Values.Remove("userid");

3 acookie.Expires = DateTime.Now.AddDays(1);

4 Response.Cookies.Add(acookie);

删除所有cookie，就是设置过期时间为现在就行了

1 int limit=Request.Cookies.Count - 1;

2 for(int i=0;i<limit;i++)

3 {

4 acookie = Request.Cookies(i)

5 acookie.Expires = DateTime.Now.AddDays(-1)

6 Response.Cookies.Add(acookie)

7 }