public void BuyComputer()
{
Boss boss = new Boss();
Builder b1 = new Class1();
Builder b2 = new Class2();
boss.Construct(b1);
computer computer1 = b1.GetComputer();
computer1.show();
boss.Construct(b2);
computer computer2 = b2.GetComputer();
computer2.show();
Console.Read();
}
