/// <summary>
        /// 更新客户信息
        /// </summary>
        public void UpdateCustomer()
        {
            string   id   = Context.Request["customerid"];
            string   name = Context.Request["customername"];
            Region   reg  = new Region();
            Customer cust = new Customer()
            {
                CustomerId   = int.Parse(id),
                CustomerName = name
            };
            Result row = cbll.update(cust);

            if (row == Result.更新成功)
            {
                Response.Write("更新成功");
                Response.End();
            }
            else
            {
                Response.Write("更新失败");
                Response.End();
            }
        }