Step by step Create QR Code with QrCodeNet
Step.1 新建項目
Step.2 在窗口中拖入一個Button
Step.3 下載QrCodeNet代碼，解壓QrCodeNetsourceCodeqrcodenetGma.QrCodeNetnugetlibnet45Gma.QrCodeNet.Encoding.dll
Step.4 加入參考（引用）
Step.5 添中using
代码语言：javascript复制using Gma.QrCodeNet.Encoding;
using Gma.QrCodeNet.Encoding.Windows.Render;
using System.IO;Step.6 粘貼代碼
代码语言：javascript复制 1 public partial class Form1 : Form
2 {
3 const string str = "160-12345678-8888,AbcdefgHijklmnOpqRst,2018/05/21";
4 public Form1()
5 {
6 InitializeComponent();
7 }
8 protected override void OnPaint(PaintEventArgs e)
9 {
10 base.OnPaint(e);
11 ShowCode(e.Graphics);
12 }
13 private void ShowCode(Graphics g)
14 {
15 QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.L);
16 QrCode qrCode = qrEncoder.Encode(str);
17
18 FixedModuleSize moduleSize = new FixedModuleSize(2, QuietZoneModules.Two);
19 GraphicsRenderer render = new GraphicsRenderer(moduleSize, Brushes.Black, Brushes.White);
20 render.Draw(g, qrCode.Matrix);
21 }
22
23 private void btnSaveFile_Click(object sender, EventArgs e)
24 {
25 QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.L);
26 QrCode code = new QrCode();
27 qrEncoder.TryEncode(str, out code);
28
29 const int modelSizeInPixels = 4;
30
31 GraphicsRenderer render = new GraphicsRenderer(
32 new FixedModuleSize(modelSizeInPixels, QuietZoneModules.Two),
33 Brushes.Black,
34 Brushes.White);
35
36 string fileName = Application.ExecutablePath "New.png";
37
38 using (FileStream stream = new FileStream(fileName, FileMode.Create))
39 {
40 render.WriteToStream(code.Matrix, System.Drawing.Imaging.ImageFormat.Png, stream);
41 }
42 }
43 }Step.7 運行結果
參考資料:
QR Code
http://www.qrcode.com/zh/about/
C#利用QrCode.Net生成二维码（Qr码）
https://www.cnblogs.com/tianma3798/p/4054270.html
利用QrCode.Net生成二维码 asp.net mvc c#
https://blog.csdn.net/paolei/article/details/12584295
草料二维码
https://cli.im/
VB.Net创建和调用DLL教程
https://blog.csdn.net/namecgc/article/details/77940698
