在winforms应用程序中创建移动线

Question

我目前正在绘制一条线到一个表单，然后让那条线在屏幕上移动，也在旋转，作为一个新手程序员，我不知道该如何去做。任何提示或建议将不胜感激。

感谢。

编辑：添加了绘制线条的代码，我知道非常简单

public void DrawStick()
    {

        for (int timer = 0; timer < 10; timer++)
        {
            int randnum = rand.Next(-10, 10);
            int startX = startPoint.X + randnum;
            int startY = startPoint.Y + randnum;
            int endX = (int)(startPoint.X + 20 * Math.Cos((double)slope * Math.PI / 180));
            int endY = (int)(startPoint.Y + 20 * Math.Sin((double)slope * Math.PI / 180));
            endPoint = new Point(endX, endY);
            startPoint = new Point(startX, startY);
            slope = (startPoint.Y - endPoint.Y) / (startPoint.X - endPoint.X);
            graObject.DrawLine(myPen, startPoint, endPoint);
            Thread.Sleep(100);
            graObject.DrawLine(backgroundPen, startPoint, endPoint);
        }
    }

startPoint和endPoint在此方法之外生成一次。