我画的每一条线都没有名称啊,我是根据
Graphics g = this.CreateGraphics();
g.SmoothingMode = SmoothingMode.AntiAlias;
Pen pen = new Pen(Color.Red, 3);
Point point1 = new Point(f.Ax, f.Ay);
Point point2 = new Point(f.Bx, f.By);
g.DrawLine(pen, point1, point2);
来画线的,怎么有名称呢?大哥帮解决一下,不会忘了你的