procedure TForm1.Button1Click(Sender: TObject); begin with TButton(Sender) do begin case Tag of 0 : Caption := '结束'; 1 : Caption := '开始运行'; end; Timer1.Enabled := not Boolean(Tag); Tag := Byte(Timer1.Enabled); end; end;
Procedure TForm1.buttonClick(Sender:TObject); begin If button.Caption='开始运行' then begin Timer.Enabled:=True; button.Caption:='结束'; end else begin Timer.Enabled:=False; button.Caption:='开始运行'; end; end;
begin
with TButton(Sender) do begin
case Tag of
0 : Caption := '结束';
1 : Caption := '开始运行';
end;
Timer1.Enabled := not Boolean(Tag);
Tag := Byte(Timer1.Enabled);
end;
end;
begin
Timer1.Enabled := False;
Button1.Caption := '开始运行';
end;
begin
If button.Caption='开始运行' then
begin
Timer.Enabled:=True;
button.Caption:='结束';
end
else
begin
Timer.Enabled:=False;
button.Caption:='开始运行';
end;
end;