其实这种东西 早就会了 只是没东西发了 先拿来滥竽充数

            System.Drawing.Image img = System.Drawing.Image.FromFile(Application.StartupPath + @"\1.png");
            Graphics g = Graphics.FromImage(img);
            FileInfo file = new FileInfo(Application.StartupPath + @"\1.jpg");
            Image img2 = Image.FromFile(file.FullName);
            g.DrawImage(img2, 1910, 480);
            g.Dispose();