本文通过C++代码示例展示了工厂模式的基本应用。定义了一个抽象产品类Product及其实现类ConcreteProduct，同时定义了抽象工厂类Factory及其实现类ConcreteFactory，通过ConcreteFactory创建ConcreteProduct实例。
class Product
{
public:
virtual ~Product() = 0;
protected:
Product();
private:
};
Product::Product()
{
}
Product::~Product()
{
}
class ConcreteProduct:public Product
{
public:
~ConcreteProduct();
ConcreteProduct();
protected:
private:
};
ConcreteProduct::ConcreteProduct()
{
cout<<"ConcreteProduct...."<<endl;
}
ConcreteProduct::~ConcreteProduct()
{
}
class Factory
{
public:
virtual ~Factory() = 0;
virtual Product* CreateProduct() = 0;
protected:
Factory();
private:
};
Factory::Factory()
{
}
Factory::~Factory()
{
}
class ConcreteFactory:public Factory
{
public:
~ConcreteFactory();
ConcreteFactory();
Product* CreateProduct();
protected:
private:
};
ConcreteFactory::ConcreteFactory()
{
cout<<"ConcreteFactory....."<<endl;
}
ConcreteFactory::~ConcreteFactory()
{
}
Product* ConcreteFactory::CreateProduct()
{
return new ConcreteProduct();
}
int _tmain(int argc, _TCHAR* argv[])
{
Factory* fac = new ConcreteFactory();
Product* p = fac->CreateProduct();
return 0;
}
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