public Phong(Phong p)
{
this.lp = p.lp;
this.maPhong = p.maPhong;
}
public LoaiPhong(LoaiPhong lp)
{
this.Loaiphong = lp.Loaiphong;
this.maLoaiPhong = lp.maLoaiPhong;
}
public Phong(string maPhong, LoaiPhong lp)
{
this.lp = lp;
this.maPhong = maPhong;
}