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dm09_工厂模式.cpp
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dm09_工厂模式.cpp
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#include <iostream>
using namespace std;
class Fruit
{
public:
virtual void sayname() = 0;
};
class Banana : public Fruit
{
public:
void sayname()
{
cout << "我是香蕉" << endl;
}
};
class Apple : public Fruit
{
public:
void sayname()
{
cout << "我是 Apple" << endl;
}
};
class AbFactory
{
public:
virtual Fruit *CreateProduct() = 0;
};
class BananaFactory :public AbFactory
{
public:
virtual Fruit *CreateProduct()
{
return new Banana;
}
};
class AppleFactory :public AbFactory
{
public:
virtual Fruit *CreateProduct()
{
return new Apple;
}
};
//////////////////////////////////////////////////////////////////////////
//添加新的产品
class Pear : public Fruit
{
public:
virtual void sayname()
{
cout << "我是 pear" << endl;
}
protected:
private:
};
class PearFactory : public AbFactory
{
public:
virtual Fruit *CreateProduct()
{
return new Pear;
}
};
void main()
{
AbFactory *factory = NULL;
Fruit *fruit = NULL;
//吃 香蕉
factory = new BananaFactory;
fruit = factory->CreateProduct();
fruit->sayname();
delete fruit;
delete factory;
//Pear
factory = new PearFactory;
fruit = factory->CreateProduct();
fruit->sayname();
delete fruit;
delete factory;
cout<<"hello..."<<endl;
system("pause");
return ;
}