我想请问一下,我在panel中画线,为什么没有显示。在其他程序中却能显示。
Graphics g;
g = panel1.CreateGraphics();
Point p1, p2, p3;
p1 = new Point(28, 60);
p2 = new Point(185, 60);
p3 = new Point(386, 120);
Pen pen = new Pen(Color.Black);
g.DrawLine(pen, p1, p2);
g.DrawLine(pen, p2, p3);
Graphics g;
g = panel1.CreateGraphics();
Point p1, p2, p3;
p1 = new Point(28, 60);
p2 = new Point(185, 60);
p3 = new Point(386, 120);
Pen pen = new Pen(Color.Black);
g.DrawLine(pen, p1, p2);
g.DrawLine(pen, p2, p3);
解决方案 »
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