c++ 6

1.

2

#include <iostream>

using namespace std;
class Animal
{
public:
    virtual void perform()
    {}
};
class Monkey:public Animal
{
private:
    string name;
public:
    Monkey(){}
    Monkey(string n):name(n){}
    void perform()
    {
        cout << name << " " << "正在翻跟斗" << endl;
    }
};
class Lion:public Animal
{
private:
    string name;
public:
    Lion(){}
    Lion(string n):name(n){}
    void perform()
    {
        cout << name << " " << "正在钻火圈" << endl;
    }
};
int main()
{
    Monkey a("王震宇");
    Lion b("王震宇");
    Animal *p;
    p=&a;
    p->perform();
    p=&b;
    p->perform();
    return 0;
}