HttpCookie aCookie;
string cookieName;
int limit = Request.Cookies.Count;
for (int i = 0; i < limit; i++)
{
cookieName = Request.Cookies[i].Name;
aCookie = new HttpCookie(cookieName);
aCookie.Expires = DateTime.Now.AddDays(-1);
//保存期限为昨天 浏览器发现过期 会自动释放
Response.Cookies.Add(aCookie);
}
Response.Redirect("Login.aspx");