DrawLine的线refresh后就没了,有什么办法可以保留,难道一定要重画吗?
nzc 2004-05-08 05:13:48 private void button1_Click(object sender, System.EventArgs e)
{
Graphics g=this.CreateGraphics();
Pen blackPen = new Pen(Color.Black, 1);
g.DrawLine(blackPen, new Point(88,99),new Point(180,188));
}
private void Button2_Click(object sender, System.EventArgs e)
{
this.Refresh ();
}
就没了...