有程序段如下:
private void button1_ Click(object sender, EventArgs e)
{
Graphics g;
G=this.CreateGraphics();
Pen p-=new Pen(Color.Green, 2);
g.DrawLine(p,75, 50, 100, 75);
g.DrawLine(p,75, 50, 100, 25);
g.Drawline(p,100, 25, 100. 75);
p.Dispose();
g.Dispose():
}
面出程序运行后,单击窗口中的button1按钮,在窗体中所绘制出的图形。