public void DrawStringToPictureBox(Image Img, string str) { Graphics g = null; g = Graphics.FromImage(Img); Font Var_Font = new Font("宋体", 11); Brush Var_Brush = new SolidBrush(Color.Red); Point location = new Point(20, 5); g.DrawString(str, Var_Font, Var_Brush, location); }