c++ 数据封装模式之三：抽象工厂模式_c++工厂模式数据封装-优快云博客

// AbstractFactory.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "ostream.h"

//定义抽象类
class CAnimal
{
protected:
    int  m_Weight;

// AbstractFactory.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "ostream.h"

//定义抽象类
class CAnimal
{
protected:
    int m_Weight; //重量
public:
    virtual void Cry() = 0;
};

class CPlant
{
protected:
    int m_Height;
public:
    virtual void Grow()=0;
};
//定义具体类
class CFish: public CAnimal
{
public:
    virtual void Cry()
    {
        cout <<"I am Fish!/n";
    }
};
class CBird : public CAnimal
{
public:
    virtual void Cry()
    {
        cout <<"I am Bird!/n";
    }
};
class CFlower: public CPlant
{
public:
    virtual void Grow()
    {
        cout<< "Flower is Growing!/n" ;
    }
};
class CTree: public CPlant
{
public:
    virtual void Grow()
    {
        cout << "Tree is Growing!/n";
    }
};
//定义工厂抽象类
class CFactory
{
public:
    virtual CAnimal* CreateObj() = 0;
    virtual CPlant * CreatePlant()=0;

};
//定义工厂具体类
class CFactory1 : public CFactory
{
public:
    virtual CAnimal* CreateObj()
    {
        return new CBird();
    }
    virtual CPlant * CreatePlant()
    {
        return new CFlower();
    }

};
class CFactory2: public CFactory
{
public:
    virtual CAnimal* CreateObj()
    {
        return new CFish();
    }
    virtual CPlant * CreatePlant()
    {
        return new CTree();
    }
};

int main(int argc, char* argv[])
{
    CAnimal* pAnimal1,* pAnimal2;
    CPlant* pPlant1,* pPlant2;

    CFactory * pFactory1,* pFactory2;

    pFactory1 = new CFactory1();
    pFactory2 = new CFactory2();

    pAnimal1 = pFactory1->CreateObj();
    pPlant1 = pFactory1->CreatePlant();

    pAnimal2 = pFactory2->CreateObj();
    pPlant2 = pFactory2->CreatePlant();

    pAnimal1->Cry();
    pAnimal2->Cry();
    pPlant1->Grow();
    pPlant2->Grow();

    delete pAnimal1;
    delete pAnimal2;
    delete pPlant1;
    delete pPlant2;

return 0;
}