如何實現點擊線路按鈕實現畫折線？

鼠標每次單擊都保存當前x,y，然后每個保存的x,y調用

drawline

,如 ：// Create pen.Pen blackPen = new Pen(Color.Black, 3);// Create coordinates of points that define line.int x1 = 100;int y1 = 100;int x2 = 500;int y2 = 100;// Draw line to screen.e.Graphics.DrawLine(blackPen, x1, y1, x2, y2);