装饰者模式-c++实现

// decoratorpattern.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#include <string>#include <iostream>#include <memory>using namespace std;//抽象类Tankclass Tank{public:virtual void shot() = 0;virtual void run() = 0;public:virtual ~Tank(){cout << "in the destructor of Tank" << endl;}};//具体类 T50class T50 :public Tank{public:void shot(){cout << "Tank T50 shot()" << endl;}void run(){cout << "Tank T50 run()" << endl;}public:virtual ~T50(){cout << "In the destructor of T50" << endl;}};//具体类T75class T75 :public Tank{public:void shot(){cout << "Tank T75 shot()" << endl;}void run(){cout << "Tank T75 run()" << endl;}public:virtual ~T75(){cout << "In the destructor of T75" << endl;}};//抽象类，Decoratorclass Decorator :public Tank{protected:Tank* tank;public:Decorator(Tank* tank) :tank(tank) {}  //具体的坦克的装饰类virtual ~Decorator(){cout << "In the destructor of Decorator" << endl;}public:void shot(){tank->shot();}void run(){tank->run();}};class InfraredDecorator : public Decorator{private:string infrared;//这就是所谓的addAtrributepublic:InfraredDecorator(Tank* tank) :Decorator(tank) {}virtual ~InfraredDecorator(){cout << "in the destructor of InfraredDecorator" << endl;}public:void set_Infrared(const string &infrared){this->infrared = infrared;}string get_infrared() const{return infrared;}void run(){tank->run();set_Infrared("+Infrared");cout << get_infrared() << endl;}void shot(){tank->shot();}};class AmphibianDecorator :public Decorator{private:string amphibian;public:AmphibianDecorator(Tank* tank) :Decorator(tank) {}~AmphibianDecorator(){cout << "in the destructor of AmphibianDecorator" << endl;}public:void set_amphibian(const string &hibian){this->amphibian = hibian;}string get_amphibian() const{return amphibian;}public:void run(){tank->run();set_amphibian("+amphibian");cout << get_amphibian() << endl;}void shot(){tank->shot();}};int main(int argc, char **argv){//给T50增加红外功能Tank* tank1(new T50);Tank* pid1(new InfraredDecorator(tank1));pid1->shot();cout << endl;pid1->run();cout << endl;cout << endl << "---------------" << endl;//给t75增加红外、两栖功能Tank* tank2(new T75);tank2->run();Tank* pid2(new InfraredDecorator(tank2));Tank* pad2(new AmphibianDecorator(pid2));pad2->shot();cout << endl;pad2->run();cout << endl;cout << endl << "--------------" << endl;//动态撤销其他装饰 ?tank2->run();Tank * tank3(tank2);tank3->run();return 0;}