1创建一个对象 Image类的(如Bitmap或者MetaFile)
2创建一个Graphics对象
3.调用Graphics.DrawImage方法
Bitmap myBitmap = new Bitmap(@"C:/users/Wu_KOBE/Pictures/1.jpg");
Graphics g = CreateGraphics();
g.DrawImage(myBitmap,1,1);
button1.Visible = true;