可以用PathGradientBrush类进行路径的渐变填充，如：

1

private

void

Form1_Paint(

object

sender, PaintEventArgs e)

2

{

3

Graphics g

=

e.Graphics;

4

GraphicsPath gp

=

new

GraphicsPath();

5

6

gp.AddLine(

10

,

10

,

110

,

15

);

7

gp.AddLine(

110

,

15

,

110

,

96

);

8

gp.AddLine(

100

,

96

,

15

,

110

);

9

gp.CloseFigure();

10

11

g.FillRectangle(Brushes.White,

this

.ClientRectangle);

12

g.SmoothingMode

=

SmoothingMode.AntiAlias;

//

反锯齿

13

 

14

PathGradientBrush pgb

=

new

PathGradientBrush(gp);

15

pgb.CenterColor

=

Color.White;

16

pgb.SurroundColors

=

new

Color[]

17

{

18

Color.Blue

19

};

20

g.FillPath(pgb,gp);

21

g.DrawPath(Pens.Black,gp);

22

pgb.Dispose();

23

gp.Dispose();

24

}

图形为：