CRect r; m_ctrcbdstdisk.GetDroppedControlRect(&r); m_ctrcbdstdisk.GetParent()-> ScreenToClient(&r); r.bottom +=30; //加30个象素 m_ctrcbdstdisk.MoveWindow(&r); m_ctrcbsrcdisk.GetDroppedControlRect(&r); m_ctrcbsrcdisk.GetParent()-> ScreenToClient(&r); r.bottom +=30; //加30个象素