using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Windows.Forms;
using?System.IO;
using?System.Text.Regularexpressions;
using?System.Data.SqlClient;

namespace?SuperMarket
{
????public?partial?class?inputUser?:?Form
????{
????????public?inputUser（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?Button2_Click（object?sender?EventArgs?e）
????????{
????????????this.Close（）;
????????}

????????private?void?Button1_Click（object?sender?EventArgs?e）
????????{
????????????//Database1Entities?ef?=?DBContext.Instance;
????????????//Users?users?=?new?Users（）;
????????????//users.username?=?tex