思维导图

代码

#include <iostream>

using namespace std;

//封装一个  讲解员  类
class Animal
{
public:
   Animal()
   {

   }

   virtual void perform()
   {
       cout << "     " << endl;
   }
};

//封装一个 狮子 类
class Lion:public Animal
{
public:
   Lion()
   {

   }

   void perform()
   {
       Animal::perform();
       cout << "动物:狮子" <<" 表演:钻火圈" << endl;
   }
};

//封装一个 鹦鹉 类
class Parrot:public Animal
{
public:
   Parrot()
   {

   }
   void perform()
   {
       Animal::perform();
       cout << "动物:鹦鹉" <<" 表演:说人话" << endl;
   }
};

//封装一个 鲸鱼 类
class Whale:public Animal
{
public:
   Whale()
   {

   }
   void perform()
   {
       Animal::perform();
       cout << "动物:鲸鱼" <<" 表演:喷水" << endl;
   }
};

//定义一个行为函数
void fun(Animal &p)
{
   p.perform();
}
int main()
{
   Lion l1;
   Parrot p1;
   Whale w1;
   fun(l1);
   fun(p1);
   fun(w1);
   return 0;
}

结果