static void Main(string[] args)
{
//NewMethod();
//NewMethod1();
//NewMethod2();
IFactory factory = new UndergraduateFactory();
IFactory factory2 = new VolunteerFactory();
LeiFeng stu = factory.CreateLeiFeng();
LeiFeng vol = factory2.CreateLeiFeng();
stu.Sweep();
vol.BuyRice();
Console.ReadLine();
}
static void Main(string[] args)
{
Console.ReadKey();
UndergraduateFactory factory = new UndergraduateFactory();
Leifeng student = factory.CreateLeiFeng();
student.Sweep();
student.Wash();
student.BuyRice();
Console.WriteLine("\n --------------------------");
Console.ReadKey();
IFactory factory2 = new VolunteerFactory();
Leifeng volunteer = factory2.CreateLeiFeng();
volunteer.Sweep();
volunteer.Wash();
volunteer.BuyRice();
Console.ReadKey();
}