c# 画三角形，并填充颜色

时间：2010-11-08 来源：烈火★寒冰

代码 1     Point point1 = new Point(0, 0);
2     Point point2 = new Point(11, 0);
3     Point point3 = new Point(5, 8);
4     Point[] pntArr = {point1, point2, point3};
5
6     e.Graphics.FillPolygon(Brushes.Red, pntArr);
7

代码 1                 int len = 10;
2                 int x = 0;
3                 int y = 0;
4                 Point[] pntArr = new Point[3];
5                 pntArr[0] = new Point(x, y);
6                 pntArr[1] = new Point(x - len, y);
7                 pntArr[2] = new Point(x - len / 2, (int)(len * Math.Sqrt(3) / 2 + y));
8                 GraphicsPath path = new GraphicsPath();
9                 path.AddLines(pntArr);
10                 e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
11                 e.Graphics.FillPath(Brushes.Red, path);
12                 e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.Default;
13

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