生成并保存二维码图片，此方法最清晰

#region 程序集 ThoughtWorks.QRCode.dll, v1.0.2774.19990
// E:WorkSpaceAutoReceivingSystem3-CDSMS.TaskServiceWorkDllNEWThoughtWorks.QRCode.dll
#endregion

 /// <summary>
      /// 生成并保存二维码图片，此方法最清晰
      /// </summary>
      /// <param name="data">二维码内容</param>
      /// <param name="picPath">生成图片保存地址</param>
      public static void GetBestQRCodeBmpSave(string data, string picPath)
      {
          QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
          qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
          qrCodeEncoder.QRCodeScale = 4;
          qrCodeEncoder.QRCodeVersion = 0;
          qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
          Bitmap bmp = qrCodeEncoder.Encode(data); 
          bmp.Save(picPath);
      }