6.11啊啊啊啊啊啊啊

#include <iostream>
 
using namespace std;
class Animal{
public:
    virtual void perform(){
        cout << "讲解员巴拉巴拉" << endl;
    }
};
class Lion:public Animal{
public:
    virtual void perform(){
        cout << "狮子在哈哈哈哈" << endl;
    }
};
class Tiger:public Animal{
public:
    virtual void perform(){
        cout << "老虎在轰轰轰" << endl;
    }
};
class Elephant:public Animal{
public:
    virtual void perform(){
        cout << "大象在玩泥巴" << endl;
    }
};
int main()
{
    Lion L;
    Tiger T;
    Elephant E;
    Animal *p=&L;
    p->perform();
    p=&T;
    p->perform();
    p=&E;
    p->perform();
 
    return 0;
}