public ActionResult DeleteUserInfo(UserInfo uInfo)
        {
            if (Session["UserLogin"] == null)
            {
                return(RedirectToAction("Login"));
            }

            if (iUserDal.DeleteEntity(uInfo))
            {
                return(RedirectToAction("ShowUserInfo"));
            }
            else
            {
                return(Content("删除出错,请重试!"));
            }
        }