C#中图片单击旋转事件

#region 图片单击旋转事件
        private void pb_Heads_Click(object sender, EventArgs e)
        {
            System.Drawing.Image myImage = pb_Heads.Image;
            myImage.RotateFlip(RotateFlipType.Rotate90FlipXY);
            pb_Heads.Image = myImage;
        }
        #endregion