二维码

  /// <summary>
    /// 二维码生成
    /// </summary>
    public class QRCodeHelper
    {
        #region
        /// <summary>
        /// 根据链接获取二维码
        /// </summary>
        /// <param name="link">链接</param>
        /// <returns>返回二维码图片</returns>
        public static Bitmap GetQRCodeBmp(string link)
        {
            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(link);

            return bmp;
        }
        #endregion

    }