问题来源: http://www.cnblogs.com/del/archive/2009/03/05/1345752.html#1468654
procedure TForm1.Edit1Click(Sender: TObject);
const
arr: array[-1..0] of string = ('man', 'woman');
begin
Edit1.Tag := not Edit1.Tag;
Edit1.Text := arr[Edit1.Tag];
end;
procedure TForm1.Edit1Click(Sender: TObject);
const
arr: array[-1..0] of string = ('man', 'woman');
begin
Edit1.Tag := not Edit1.Tag;
Edit1.Text := arr[Edit1.Tag];
end;