General.Core/Common/QRCode/RaffQRCode.cs

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using QRCoder;
using System.Drawing;

namespace General.Core.Common.QRCode
{
    public class RaffQRCode : IQRCode
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="url">存储内容</param>
        /// <param name="pixel">像素大小</param>
        /// <returns></returns>
        public Bitmap GetQRCode(string url, int pixel)
        {
            QRCodeGenerator generator = new QRCodeGenerator();
            QRCodeData codeData = generator.CreateQrCode(url, QRCodeGenerator.ECCLevel.M, true);
            QRCoder.QRCode qrcode = new QRCoder.QRCode(codeData);

            Bitmap qrImage = qrcode.GetGraphic(pixel, Color.Black, Color.White, true);

            return qrImage;
        }
    }
}