private Image <Bgr565> GetQrImage(string tt) { var writer = new ZXing.ImageSharp.BarcodeWriter <Bgr565> { Format = BarcodeFormat.QR_CODE }; writer.Options.Hints.Add(EncodeHintType.CHARACTER_SET, "UTF-8"); //编码问题 writer.Options.Hints.Add( EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H ); const int codeSizeInPixels = 500; //设置图片长宽 writer.Options.Height = writer.Options.Width = codeSizeInPixels; writer.Options.Margin = 1; //设置边框 return(writer.Write(writer.Encode(tt))); }