c#如何生成二维码的示例分享

实现功能:

1生成带有LOGo二维码

2 将二维码绘制到图片上

3 图片上绘制文字

生成二维码

public string CreateQrCode(string md5Str,string name,int sex)        {
                string str = sex == 1? "先生":"女士";
                string logoPath = AppDomain.currentDomain.BaseDirectory + "/logo.png";
                string qrCodePath = path + DateTime.Now.ToString("yyyyMMddHHmmss") + ".jpg";
                string yqPath = AppDomain.CurrentDomain.BaseDirectory + "/yq2.jpg";
                string yqCardPath = path + TCommon.Md5(DateTime.Now.ToString("yyyyMMddHHmmss")) + ".jpg";
            if (Directory.Exists(path) == false)//如果不存在就创建file文件夹            {
                    Directory.CreateDirectory(path);
            }
                Generate3(md5Str,logoPath,qrCodePath);
                Image qrCodeimg = new BITmap(qrCodePath);
                Image image = new Bitmap(yqPath);
                Graphics ig = Graphics.FromImage(image);
                Font font = new Font("Arial", 38,FontStyle.Bold);
                 Font font2 = new Font("STXINWei", 38, FontStyle.Bold);
                brush brush = System.Drawing.Brushes.Black;
                SizeF size = ig.MeasureString(name, font2);
                SizeF size2 = ig.MeasureString(str, font);
                ig.DrawString(name, font, brush, (720-size.Width-size2.Width) /2, 680);
                ig.DrawString(str, font, brush, (720 - size.Width - size2.Width) / 2 + size.Width, 680);
                ig.FillRectangle(Brushes.White, 280, 351, 160, 160);
                ig.DrawImage(qrCodeImg, 285, 356);
                image.Save(yqCardPath);
                return yqCardPath.Substring(2);
        }
    图片上生成文字

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