#include<iostream>
using namespace std;
#include<string>
class animal {
public:
void show() {
cout << "Animal"<<" " << "名称：" << name << " " << "年龄：" << age << endl;
}
protected:
string name;
int age;
};
class fish : virtual public animal {
public:
void show() {
cout << "Fish" << " " << "名称：" << name << " " << "年龄：" << age <<"速度："<<velocity<< endl;
}
protected:
int velocity;
};
class beast : virtual public animal {
public:
void show() {
cout << "Beast" << " " << "名称：" << name << " " << "年龄：" << age << "食量：" << appetite << endl;
}