procedure TMain_frm.FillFocuText;
var MRect0,MRect1:TRect;
begin
With StringSGrid do
begin
MRect0:=CellRect(0,TempInt);
Canvas.Font.Color:=Font.Color;
Canvas.Brush.Color:=Color;
Canvas.TextRect(MRect0, MRect0.Left+2, MRect0.Top+2, Cells[0,TempInt]);
//删除上一次点击时留下的颜色