public ActionResult Login(string loginEmail, string loginPassword)
        {
            AjaxResult ajaxResult = new AjaxResult();

            if (loginEmail == "" || loginPassword == "")
            {
                ajaxResult.Result    = DoResult.Failed;
                ajaxResult.PromptMsg = "请将信息填全!!";
            }
            else
            {
                user u = new user();
                u.Email    = loginEmail;
                u.Password = loginPassword;
                user findUser = Op_User.FindUser(u);
                if (findUser != null)
                {
                    ajaxResult.Result    = DoResult.Success;
                    ajaxResult.PromptMsg = "登录成功";
                    //设置登录状态
                    Session["USER"] = findUser;
                }
                else
                {
                    ajaxResult.Result    = DoResult.Failed;
                    ajaxResult.PromptMsg = "邮箱或者密码不对";
                }
            }
            return(Json(ajaxResult));
        }