画多边形应使用Graphics的什么属性 c#

drawline加上多边形的坐标也可以吧。

//===============1种===================
全局：
Queue PointArray = new Queue();
鼠标弹起事件：
if (e.Button == MouseButtons.Left)
{
PointArray.Enqueue(new Point(e.X, e.Y)); //记录点
}
else
{
this.CreateGraphics().DrawPolygon(new Pen(Color.Red), PointArray.ToArray() );//绘制矩形，this是窗体
PointArray.Clear();
}
//=====================================
//===============2种===================
Point point1 = new Point(100, 200);
Point point2 = new Point(100, 300);
Point point3 = new Point(200, 300);
Point point4 = new Point(200, 200);
Point[] curvePoints =
{ point1, point2, point3, point4, }; //定义点数组，这个可以通过鼠标画点得到，也可以指定固定的点

System.Drawing.SolidBrush myBrush2 = new System.Drawing.SolidBrush(System.Drawing.Color.Blue); //定义一个brush
formGraphics.FillPolygon(myBrush2, curvePoints);//绘图
myBrush2.Dispose();
formGraphics.Dispose(); //销毁对象
//=====================================

DrawPolygon 方法