.net 生成二维码

nuget 引入QRCode组件

 

 此方法会生成二维码并保存成图片

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using QRCoder; using System; using System.Collections.Generic; using System.Drawing.Imaging; using System.Linq; using System.Text; using System.Threading.Tasks;   namespace UserQrCode.Tools {     public class QrCodeHelper     {         public static  void CreateCode(string content, string fileName)         {             QRCodeGenerator codeGenerator = new QRCodeGenerator();             using (QRCodeData qrData = codeGenerator.CreateQrCode(content, QRCodeGenerator.ECCLevel.Q,true,true,eciMode:QRCodeGenerator.EciMode.Utf8))             {                 using (QRCode qrCode = new QRCode(qrData))                 {                     Bitmap qrCodeImage = qrCode.GetGraphic(4, Color.Black, Color.White, null, 15, 6, false);                     MemoryStream ms = new MemoryStream();                     qrCodeImage.Save(ms, ImageFormat.Jpeg);                     qrCodeImage.Save(fileName);                 }             }         }     } }