最简单的验证票

int userID = 2;
            System.Web.Security.FormsAuthenticationTicket ticket = new System.Web.Security.FormsAuthenticationTicket(1,userID.ToString(), System.DateTime.Now, System.DateTime.Now.AddDays(1), true, "user", System.Web.Security.FormsAuthentication.FormsCookiePath);
            string Savecookies = System.Web.Security.FormsAuthentication.Encrypt(ticket);
            
            System.Web.HttpContext.Current.Response.Cookies.Add(new System.Web.HttpCookie(System.Web.Security.FormsAuthentication.FormsCookieName, Savecookies));
            System.Web.HttpContext.Current.Response.Cookies[0].Expires = ticket.Expiration;
            Response.Write(System.Web.HttpContext.Current.User.Identity.Name);