Bal*_*a R 21
尝试一下 OnPaint
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Graphics g;
g = e.Graphics;
Pen myPen = new Pen(Color.Red);
myPen.Width = 30;
g.DrawLine(myPen, 30, 30, 45, 65);
g.DrawLine(myPen, 1, 1, 45, 65);
}
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