一个工厂模式的例子（C++实现）

#include "BirdA.h" #include "BirdB.h" #include "BirdC.h" #include "TigerA.h" #include "TigerB.h" #include "TigerC.h" #include "TigerFactory.h" #include "BirdFactory.h" #include <iostream> #include <string> using namespace std; void main(void) { Factory* factory=new TigerFactory(); Animal* animal=factory->CreateAnimal("大号老虎"); animal->eat(); factory->DeleteAnimal(animal); animal=factory->CreateAnimal("中号老虎"); animal->eat(); factory->DeleteAnimal(animal); animal=factory->CreateAnimal("小号老虎"); animal->eat(); factory->DeleteAnimal(animal); Factory* factory2=new BirdFactory(); animal=factory2->CreateAnimal("小号鸟"); animal->eat(); factory2->DeleteAnimal(animal); animal=factory2->CreateAnimal("中号鸟"); animal->eat(); factory2->DeleteAnimal(animal); animal=factory2->CreateAnimal("大号鸟"); animal->eat(); factory2->DeleteAnimal(animal); }