Cookie的创建使用和删除

最近发现好多东西都没记录下来，有点忘记了，借此记录一下。

创建Cookie

HttpCookie myCookie = new HttpCookie("UserSettings");
myCookie["Font"] = "Arial";
myCookie["Color"] = "Blue";
myCookie.Expires = DateTime.Now.AddDays(1d);
Response.Cookies.Add(myCookie);

效果：



设置cookie的路径，应该是用来限制myCookie的访问范围。

myCookie.Path = "test";

效果：



使用Cookie：

if (Request.Cookies["UserSettings"] != null)
{
string userSettings;
if (Request.Cookies["UserSettings"]["Font"] != null)
{ userSettings = Request.Cookies["UserSettings"]["Font"]; }
}

删除Cookie：

if (Request.Cookies["UserSettings"] != null)
{
HttpCookie myCookie = new HttpCookie("UserSettings");
myCookie.Expires = DateTime.Now.AddDays(-1d);
Response.Cookies.Add(myCookie);
}

设置过期即可删除Cookie。