procedure TForm1.bt_deleteClick(Sender: TObject);
begin
ADOQuery1.Close;
ADOQuery1.SQL.Clear;
ADOQuery1.SQL.Add('delete from user where id='''+Edit1.Text+''' and password='''+Edit2.Text+'''');
ADOQuery1.ExecSQL;
Edit1.Clear;
Edit2.Clear;
showMessage('删除成功');
end;
procedure TForm1.bt_changeClick(Sender: TObject);
begin
ADOQuery1.Close;
ADOQuery1.SQL.Clear;
ADOQuery1.SQL.Add('update user set password='''+Edit2.Text+''' where id='''+Edit1.Text+'''');
ADOQuery1.ExecSQL;
Edit1.Clear;
Edit2.Clear;
showMessage('更改成功');
end;
都是一个套路,理解了就会写了?