2023.10.12

#include <iostream>using namespace std;
//定义动物类
class Animal
{
private:string name;
public:Animal(){}Animal(string name):name(name){}~Animal(){}//定义虚函数virtual void perform()=0;//表演的节目void show(){cout << "Please enjoy the special performance of " << name << endl;}
};
//管理员
class Guide:public Animal
{
public:Guide(){}Guide(string name):Animal(name){}
};
//表演
class Perform:public Guide
{
public:Perform(){}Perform(string name):Guide(name){}//重写虚函数void perform(){Animal::show();}
};int main()
{Perform a("elephants");Perform b("lions");Perform c("tigers");Perform d("crocodiles");Perform e("hippos");Perform f("camels");Perform g("peacocks");Guide *p;p=&a;p->perform();p=&b;p->perform();p=&c;p->perform();p=&d;p->perform();p=&e;p->perform();p=&f;p->perform();p=&g;p->perform();return 0;
}