设计模式——工厂方法模式（C++实现）

 #include <iostream>
 #include <string>

 using namespace std;

 class CProduct
 {
 public:
         virtual void Use() = ;
 };

 class CConcreteProductA: public CProduct
 {
 public:
         virtual void Use()
         {
                 cout<< "ConCreteProductA....."<< endl;
         }
 };

 class CConcreteProductB: public CProduct
 {
 public:
         virtual void Use()
         {
                 cout<< "ConCreteProductB....."<< endl;
         }
 };

 class CFactory
 {
 public:
         virtual CProduct* FactoryMethod() = ;
 };

 class CConcreteFactoryA: public CFactory
 {
 public:
         virtual CProduct* FactoryMethod()
         {
                 return new CConcreteProductA();
         }
 };

 class CConcreteFactoryB: public CFactory
 {
 public:
         virtual CProduct* FactoryMethod()
         {
                 return new CConcreteProductB();
         }
 };

 int main(void)
 {
         CFactory* cFactoryA = new CConcreteFactoryA();
         CProduct* cProductA = cFactoryA->FactoryMethod();

         cProductA->Use();

         delete cFactoryA;
         delete cProductA;

         CFactory* cFactoryB = new CConcreteFactoryB();
         CProduct* cProductB = cFactoryB->FactoryMethod();

         cProductB->Use();

         delete cFactoryB;
         delete cProductB;

         return ;
 }
 //////////////////////////////
 [wenchaozeng@~/learn_code/design_pattern/6_factory_method]$ ./FactoryMethod
 ConCreteProductA.....
 ConCreteProductB.....

参考:http://design-patterns.readthedocs.io/zh_CN/latest/creational_patterns/factory_method.html