unit1.~pas

联系StringGrid1组件的应用,熟悉for的两种用法.

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ActnMan, ActnColorMaps, StdCtrls, Grids;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    StringGrid1: TStringGrid;
    Button3: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);


  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
i,j:integer;
begin
stringgrid1.Color:=clred;
stringgrid1.Cells[0,0]:='99乘法表';

for j:=1 to 9 do
for i:=1 to 9 do
begin

stringgrid1.Cells[0,j]:=inttostr(j);
stringgrid1.Cells[i,0]:=inttostr(i);
stringgrid1.Cells[i,j]:=inttostr(i)+'*'+inttostr(j)+'='+inttostr(i*j);
end;
end;
procedure TForm1.Button2Click(Sender: TObject);
var
i,j :integer;
begin
stringgrid1.Cells[0,0]:='99乘法表';
stringgrid1.Color := clactivecaption;
for j:=9 downto 1 do
for i:=9 downto 1 do
begin
stringgrid1.Cells[0,j]:=inttostr(j);
stringgrid1.Cells[i,0]:=inttostr(i);

stringgrid1.Cells[i,j]:=inttostr(j)+'*'+inttostr(i)+'='+
inttostr(j*i);
end;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
close;
end;

end.