procedure TForm1.RadioGroup1Click(Sender: TObject); var i:integer; begin for i:=0 to form1.RadioGroup1.Items.Count-1 do begin if radiogroup1.itemindex<>i then showmessage('you bad'); end; end;
上面代码给错 下面的正确procedure TForm1.Button1Click(Sender: TObject); begin if form1.RadioGroup1.ItemIndex<0 then showmessage('you ....'); end;
var
i:integer;
begin
for i:=0 to form1.RadioGroup1.Items.Count-1 do
begin
if radiogroup1.itemindex<>i then showmessage('you bad');
end;
end;
下面的正确procedure TForm1.Button1Click(Sender: TObject);
begin
if form1.RadioGroup1.ItemIndex<0 then showmessage('you ....');
end;
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if radiogroup1.itemindex=-1 then showmessage('ok');