实验 23:策略模式
[实验任务一]:旅行方式的选择
旅游的出行方式有乘坐飞机旅行、乘火车旅行和自行车游,不同的旅游方式有不同的实现过程,客户可以根据自己的需要选择一种合适的旅行方式。
#include<iostream> using namespace std; //抽象策略类 class TravelStrategy{ public: virtual void travel()=0; }; //具体策略类 class AirplaneStrategy:public TravelStrategy{ public: void travel(){ cout<<"乘坐飞机旅行"<<endl; } }; //具体策略类 class TrainStrategy:public TravelStrategy{ public: void travel(){ cout<<"乘坐火车旅行"<<endl; } }; //具体策略类 class BicycleStrategy:public TravelStrategy{ public: void travel(){ cout<<"骑自行车旅行"<<endl; } }; //环境类 class Person{ private: TravelStrategy *strategy; public: void setStrategy(TravelStrategy *strategy){ this->strategy=strategy; } void travel(){ strategy->travel(); } }; //测试函数 int main(){ Person *p=new Person(); TravelStrategy *travel; cout<<"*******菜单*******"<<endl; cout<<" 1.飞机\n 2.火车\n 3.自行车"<<endl; cout<<"******************"<<endl; cout<<"请选择您的旅游方式:"<<endl; int i; cin>>i; if(i==1){ travel=new AirplaneStrategy(); }else if(i==2){ travel=new TrainStrategy(); }else if(i==3){ travel=new BicycleStrategy(); }else{ cout<<"输入有误!"<<endl; } p->setStrategy(travel); p->travel(); }
标签:23,软件设计,travel,TravelStrategy,实验,void,new,public From: https://www.cnblogs.com/lyf3701/p/16858369.html