/// <summary> /// 生成二维码 /// </summary> /// <param name="text">内容</param> /// <param name="width">宽度</param> /// <param name="height">高度</param> /// <returns>Bitmap对象</returns> public Image GenerateQRCode(string text, int width, int height) { using QRCodeGenerator qrGenerator = new QRCodeGenerator(); using QRCodeData qrCodeData = qrGenerator.CreateQrCode(text, QRCodeGenerator.ECCLevel.Q); using QRCoder.BitmapByteQRCode bitmapByteQRCode = new BitmapByteQRCode(qrCodeData); var datas = bitmapByteQRCode.GetGraphic(5, "#000000", "#ffffff"); Image image = Image.Load(datas); image.Mutate(ctx => { ctx.Resize(width, height); }); return image; } /// <summary> /// 生成带Logo的二维码 /// </summary> /// <param name="text">内容</param> /// <param name="width">宽度</param> /// <param name="height">高度</param> /// <param name="logoImage">Logo</param> /// <returns>Bitmap对象</returns> public Image GenerateQRCodeWithLogo(string text, int width, int height, Image logoImage) { var qrCodeImage = GenerateQRCode(text, width, height); // 计算插入 logo 的位置 int x = (width - logoImage.Width) / 2; int y = (height - logoImage.Width) / 2; qrCodeImage.Mutate(ctx => { ctx.DrawImage(logoImage, new Point(x, y), 1); }); return qrCodeImage; }