C#双缓冲

private void Updata(){    Graphics g = pictureBox.CreateGraphics();//创建画布    BufferedGraphicsContext currentContext = BufferedGraphicsManager.Current;//创建缓冲区上下文    BufferedGraphics myBuffer = currentContext.Allocate(g, this.DisplayRectangle);//申请缓冲区空间    Graphics gbuffer = myBuffer.Graphics;//得到缓冲区画布    Draw(gbuffer);//自己要画的东西    myBuffer.Render(g);//将画布显示到屏幕上    myBuffer.Dispose();    g.Dispose();}