static void Main(string[] args)
{
CongNhan cn1 = new CongNhan();
cn1.nhap();
cn1.xuat();
}
public void Nhap(CanBo[] canBos, int n)
{
string x;
for (int i = 0; i < n; i++)
{
Console.WriteLine("Nhap can bo {0}", i);
Console.WriteLine("-Nhap 1 neu la cong nhan: ");
Console.WriteLine("-Nhap 2 neu la ky su: ");
Console.WriteLine("-Nhap 3 neu la nhan vien: ");
x = Console.ReadLine();
if (x == "1")
{
canBos[i] = new CongNhan();
canBos[i].Nhap();
}
else
{
if (x == "2")
{
canBos[i] = new KySu();
canBos[i].Nhap();
}
if (x == "3")
{
canBos[i] = new NhanVien();
canBos[i].Nhap();
}
}
}
}