如何生存二维码图片保存到本地

添加引用：using Gma.QrCodeNet.Encoding.Windows.Render; using Gma.QrCodeNet.Encoding; 引用Gma.QrCodeNet.Encoding.dll文件 string helloWorld = "helloWorld"; QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H); QrCode qrCode = new QrCode(); qrEncoder.TryEncode(helloWorld, out qrCode); GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(12, QuietZoneModules.Two)); MemoryStream ms = new MemoryStream(); using (FileStream stream = new FileStream(@"C:\Users\Administrator\Desktop\新建文件夹\HelloWorld.png", FileMode.Create)) { //ImageFormat.Png和BMP两种格式不会有黑边框 renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, stream); }