public MenuGiaoDien() { Kho = new MenuKho(); KhachHang = new MenuKhachHang(); GiaKhuyenMai = new MenuGiaKhuyenMai(); Quyen = new MenuQuyen(); The = new MenuThe(); NhanVien = new MenuNhanVien(); DinhLuong = new MenuDinhLuong(); MayIn = new MenuMayIn(); QuanLySoDoBan = new MenuQuanLySoDoBan(); }