摘要： Form_Load 事件下绘制的结果会被 paint 刷新掉.也就等于没有绘制一样.Graphics g = this.CreateGraphics();g.DrawRectangle(new Pen(Brushes.Blue, 2), new Rectangle(0, 0, ClientRectangle.Width / 2, ClientRectangle.Height / 2));g.DrawRectangle(new Pen(Color.Red, 2), new Rectangle(0, ClientRectangle.Height / 2, ClientRectangle.Width 阅读全文