//声明:PolyPolygon(  DC: HDC;    {设备环境句柄}  var Points; {点数组}  var nPoints;{数组, 数组元素是每个多边形的顶点数}  p4: Integer {多边形数, 也就是 nPoints 的元素数}): BOOL;         //举例:procedure TForm1.FormPaint(Sender: TObject);var  ps: array[0..9] of TPoint;  pn: array[0..1] of Integer;begin  {多边形1:}  ps[0].X := 50;  ps[0].Y := 50;  ps[1].X := 100;  ps[1].Y := 50;  ps[2].X := 125;  ps[2].Y := 75;  ps[3].X := 100;  ps[3].Y := 100;  ps[4].X := 50;  ps[4].Y := 100;  ps[5].X := 25;  ps[5].Y := 75;  {多边形2:}  ps[6].X := 200;  ps[6].Y := 25;  ps[7].X := 300;  ps[7].Y := 25;  ps[8].X := 300;  ps[8].Y := 125;  ps[9].X := 200;  ps[9].Y := 125;  pn[0] := 6; {多边形1有6个顶点}  pn[1] := 4; {多边形2有4个顶点}  PolyPolygon(Canvas.Handle, ps, pn, 2);end;          //效果图: