C#利用GDI绘制常见图形和文字

4.画一个扇形

 

复制代码 private void btnDrawSector_Click(object sender, EventArgs e)
{
    Graphics g = this.CreateGraphics();
    g.DrawPie(new Pen(Brushes.Green),
        new Rectangle(new Point(100, 70),
            new Size(50, 50)), 60, 90);
}