protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
HttpCookie UserInfo = new HttpCookie("UserInfo");
UserInfo.Value = "bdstjk";
Response.Cookies.Add(UserInfo);
}
}
protected void btnRemoveCookie_Click(object sender, EventArgs e)
{
Response.Cookies.Remove("UserInfo");
Response.Write("script type=\"text/javascript\">alert(\"刪除Cookie成功！\");/script>");
}
protected void btnCheckCookie_Click(object sender, EventArgs e)
{
if (Request.Cookies["UserInfo"] != null)
{
Response.Write("Cookie存在，"+Request.Cookies["UserInfo"].Value);
}
else
{
Response.Write("Cookie不存在");
}
}
好了。Cookie已經刪除。通過設置Cookie的過期時間為負，強制使Cookie過期。就能實現我們需要的效果了。