C#里面的画圆和画其他几何图形的函数

全部都由System。Drawing。Graphics 的实例来完成,具体请参考MSDN举例如下,画直线：public void DrawLinePoint(PaintEventArgs e){// Create pen。Pen blackPen = new Pen(Color。Black,3);// Create points that define line。Point point1 = new Point(100,100);Point point2 = new Point(500,100);// Draw line to screen。e。Graphics。DrawLine(blackPen,point1,point2);}