史上最简洁C# 生成条形码图片思路及示例分享

            FontFamily ff = new FontFamily("Free 3 of 9 Extended", fonts);
            //接近条形码
            //fonts.AddFontFile(HttpContext.Current.Server.MapPath(".") + "/BarCodeFonts/V100014_.TTF");
            //FontFamily ff = new FontFamily("C39P24DlTt", fonts);
            Font font = new Font(ff, 12);
            //设置图片大小
            Image img = new Bitmap(1, 1);
            Graphics g = Graphics.FromImage(img);
            SizeF fontSize = g.MeasureString(strNumber, font);
            int intWidth = Convert.ToInt32(fontSize.Width);
            int intHeight = Convert.ToInt32(fontSize.Height);
            g.Dispose();
            img.Dispose();
            img = new Bitmap(intWidth, intHeight);
            g = Graphics.FromImage(img);
            g.Clear(Color.White);
            g.CompositingQuality = CompositingQuality.HighQuality;
            g.SmoothingMode = SmoothingMode.HighQuality;
            g.DrawString(strNumber, font, Brushes.Black, 0, 0);
            MemoryStream stream = new MemoryStream();
            img.Save(stream, ImageFormat.Jpeg);
            HttpContext.Current.Response.ClearContent();
            HttpContext.Current.Response.ContentType = "image/Jpeg";
            HttpContext.Current.Response.BinaryWrite(stream.ToArray());
            g.Dispose();
            img.Dispose();
        }