procedure TForm1.StringGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
Rect: TRect; State: TGridDrawState);
var
s: String;
R: TRect;
begin
with StringGrid1 do
begin
case (ARow Mod 4) of //不同行不同的背景色,4种颜色间隔
0: Canvas.Brush.Color := clGreen;
1: Canvas.Brush.Color := clRed;
2: Canvas.Brush.Color := clYellow;
3: Canvas.Brush.Color := clBlue;
end;
Canvas.FillRect(Rect);
S := Cells[ACol,ARow];
R := Rect;
DrawText(Canvas.Handle,PChar(s),Length(s),r,DT_CENTER or DT_SINGLELINE or DT_VCENTER); //文字居中
end;
end;