实例2：
本例功能:
1、获取 StringGrid 的行数、列数;
2、给单元赋值.
运行效果图:
//示例代码:
//获取总列数，和总行数
procedure TForm12.Button1Click(Sender: TObject);
var
cCount,rCount: Integer;
begin
cCount := StringGrid1.ColumnCount; {获取总列数}
rCount := StringGrid1.RowCount; {获取总行数}
Caption := Format('总列数: %d ,总行数: %d', [cCount, rCount]); {显示在标题}
end;
//给每一个单元格赋值
procedure TForm12.Button2Click(Sender: TObject);
var
c,r: Integer;
begin
for c := 0 to StringGrid1.ColumnCount - 1 do
for r := 0 to StringGrid1.RowCount - 1 do
StringGrid1.Cells[c,r] := Format('%d,%d', [c,r]);
end;
end.