public ActionResult List(Admin admin)
        {
            AdminBLL adminBLL = new AdminBLL();

            if (adminBLL.Login(admin.aUserName, admin.aPassword))
            {
                BaseUserInfoBLL baseInfo = new BaseUserInfoBLL();
                ViewData.Model = baseInfo.getUserList();
                Response.Cookies["userName"].Value = admin.aUserName;
                Response.Cookies["userName"].Expires = DateTime.Now.AddDays(7);
                return View("List");
            }
            else
            {
                return Content("登录失败");
            }
            
        }
        public ActionResult editAdmin(ChangeAdmin admin)
        {
            AdminBLL adminBLL = new AdminBLL();

            if (!adminBLL.Login(admin.aUserName,admin.aPassword))
            {
                return Content("修改失败,原密码错误");
            }
            if (admin.aNewPassword!=admin.aReNewPassword)
            {
                return Content("修改失败,新密码两次输入不一致");
            }
            if (!adminBLL.editAdmin(admin))
            {
                return Content("修改失败");
            }
            Response.Cookies["userName"].Expires = DateTime.Now;
            return RedirectToAction("Index");
        }