{

NetDeviceFactory *factory = NetDeviceFactory::getFactory();

NetDevice *device1, *device2, *device3, *device4;

// 客户端2获取一个hub

device1 = factory->getNetDevice('H');

device1->print(1);

// 客户端2获取一个hub

device2 = factory->getNetDevice('H');

device2->print(2);

// 判断两个hub是否是同一个

printf("判断两个hub是否是同一个:\n");

printf("device1:%p\ndevice2:%p\n", device1, device2);

printf("\n\n\n\n");

// 客户端3获取一个switch

device3 = factory->getNetDevice('S');

device3->print(1);

// 客户端4获取一个hub

device4 = factory->getNetDevice('S');

device4->print(2);

// 判断两个hub是否是同一个

printf("判断两个switch是否是同一个:\n");

printf("device3:%p\ndevice4:%p\n", device3, device4);

printf("\n\n");

delete factory;

delete device1;

delete device2;

delete device3;

delete device4;

system("pause");

return 0;

}