//保存信息
        private void Save_Click(object sender, RoutedEventArgs e)
        {
            //验证信息
            if (tb_Cno.Text == "" ||
                tb_Cname.Text == "" ||
                tb_Cphone.Text == "" ||
                tb_Caddr.Text == "")
            {
                MessageBox.Show("请输入完整顾客信息", "错误", MessageBoxButton.OK,
                                MessageBoxImage.Error);
                return;
            }

            //顾客信息
            Customer customer = new Customer(tb_Cno.Text, tb_Cname.Text,
                                             tb_Caddr.Text, tb_Cphone.Text);

            try
            {
                adapter.AddOneCustomer(customer);
                MessageBox.Show("添加商品成功", "提醒", MessageBoxButton.OK,
                                MessageBoxImage.Information);
            }
            catch (Exception ex)
            {
                MessageBox.Show("异常发生,请检查数据库连接或数据是否符合标准", "错误", MessageBoxButton.OK,
                                MessageBoxImage.Error);
                //写入日志
            }
        }