C#brush的使用

private void Form1_Paint(object sender, PaintEventArgs e)
        {
　　　　　// (实心刷)
                  Rectangle  myrect1 = new Rectangle(20, 80, 250, 100);
                 SolidBrush  mysbrush1 = new SolidBrush(Color.DarkOrchid);                 
                 SolidBrush  mysbrush2 = new SolidBrush(Color.Aquamarine);      
                  SolidBrush  mysbrush3 = new SolidBrush(Color.DarkOrange);

　　　　　//(梯度刷)
                  LinearGradientBrush  mylbrush5 = new LinearGradientBrush(rect1,
                  Color.DarkOrange, Color.Aquamarine,
                  LinearGradientMode.BackwardDiagonal);

                 //(阴影刷)
                 HatchBrush  myhbrush5 = new HatchBrush(HatchStyle.DiagonalCross,
                  Color.DarkOrange, Color.Aquamarine);
                  HatchBrush  myhbrush2 = new HatchBrush(HatchStyle.DarkVertical,
                  Color.DarkOrange, Color.Aquamarine);
                  HatchBrush  myhbrush3 = new HatchBrush(HatchStyle.LargeConfetti,
                  Color.DarkOrange, Color.Aquamarine);

                 //(纹理刷)
                  TextureBrush textureBrush = new TextureBrush(new Bitmap(@"e:\123.jpg"));
                  e.Graphics.FillRectangle(mysbrush1, rect1);　        // (实心刷)
　　　　　　 e.Graphics.FillRectangle(mylbrush1, rect1);            //(梯度刷)

　　            e.Graphics.FillRectangle(myhbrush1, rect1);             //(阴影刷)      
                 e.Graphics.FillRectangle(mytextureBrush, rect1);       //(纹理刷)

         }

LinearGradientBrush 类的命名空间为  System.Drawing.Drawing2D