抽象原廠模式（C++）

#define win 0#define mac 1#include <iostream>using namespace std;class button{public:    button(){}    virtual ~button(){}    virtual void showbutton()=0;};class winbutton : public button{public:    winbutton(){}    virtual ~winbutton(){}    void showbutton(){cout<<"win button"<<endl;}};class macbutton : public button{public:    macbutton(){}    virtual ~macbutton(){}    void showbutton(){cout<<"mac button"<<endl;}};class text{public:    text(){}    virtual ~text(){}    virtual void showtext()=0;};class wintext : public text{public:    wintext(){}    virtual ~wintext(){}    void showtext(){cout<<"win text"<<endl;}};class mactext : public text{public:    mactext(){}    virtual ~mactext(){}    void showtext(){cout<<"mac text"<<endl;}};class abstractfactory{public:    abstractfactory(){}    virtual ~abstractfactory(){}    virtual button *createbutton()=0;    virtual text *createtext()=0;};class winfactory : public abstractfactory{public:    winfactory(){}    virtual ~winfactory(){}    button *createbutton(){return new winbutton;}    text *createtext(){return new wintext;}};class macfactory : public abstractfactory{public:    macfactory(){}    virtual ~macfactory(){}    button *createbutton(){return new macbutton;}    text *createtext(){return new mactext;}};int main(){    abstractfactory *fc=new winfactory;    button *bt=fc->createbutton();    text *tx=fc->createtext();    bt->showbutton();    tx->showtext();    delete bt;    delete tx;    delete fc;    fc=new macfactory;    bt=fc->createbutton();    tx=fc->createtext();    bt->showbutton();    tx->showtext();    delete bt;    delete tx;    delete fc;    system("pause");    return 0;}