using System;

public class ThuVien{

    public string MaSach ;

    public string TenSach;

    public string TheLoai;

    public double GiaTien;

    public string KieuSach;

    public string NXB;

    public string TacGia;

    public string NguoiDich;

    public string SoLanXuatBan;

    public string KichThuoc;

    public string CanNang;

    public static void Doc()

    {

    }

    public static void Viet()

    {

    }

    public static void Audio()

    {

    }

    public static void TrangTruoc()

    {

    }

    public static void TrangSau()

    {

    }

    public static void ChonDenTrang()

    {

    }

    public static void ThanhDiChuotNhanh()

    {

    }

}

​