procedure TForm1.btn1Click(Sender: TObject);var t:TCheckBox ;beginif rg1.ItemIndex<>-1 thenbegincase rg1.ItemIndex of0:edt1.Text:=✀1✀;1:edt1.Text:=✀2✀;2:edt1.Text:=✀3✀;3:edt1.Text:=✀4✀;end; edt1.Text:=edt1.Text+✀你选择了:✀ ; if t.Checked then edt1.Text:=t.Caption;end; end;end.[Warning] zao.pas(48): Variable ✀t✀ might not have been initialized这是怎么回事,怎么初始化啊,请高手指教啊忘给分了,如果能给你解决,我会给20分,谢谢了