using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;

namespace?QRCode
{
????public?partial?class?Form1?:?Form
????{
????????DotNetBarcode?bc?=?new?DotNetBarcode（）;
????????Image?printImage;
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?btnCreate_Click（object?sender?EventArgs?e）
????????{
????????????this.ptQRCode.Refresh（）;
????????}

????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????bc.Type?=?DotNetBarcode.Types.QRCode;
????????????bc.PrintCheckDigitChar?=?true;
????????}

????????private?void?ptQRCode_Paint（object?sender?PaintEventArgs?e）
?