代码;
#include <iostream>
#include<string>
using namespace std;
class Animal{
public:
virtual void cry(){
cout<<"不知哪种动物，让我如何学叫？"<<endl;
}
};
class Mouse:public Animal{
public:
Mouse(string n,char s):name(n),sex(s){}
void cry(){
cout<<"我叫"<<name<<"，是一只"<<((sex=='m')?"男":"女")<<"老鼠，我的叫声是：吱吱吱"<<endl;
}
private:
string name;
char sex;
};
class Cat:public Animal{
public:
Cat(string n):name(n){}
void cry(){
cout<<"我叫"<<name<<"，是一只猫，我的叫声是：喵喵喵"<<endl;
}
private:
string name;
};
class Dog:public Animal{
public:
Dog(string n):name(n){}
void cry(){
cout<<"我叫"<<name<<"，是一只狗，我的叫声是：旺旺旺"<<endl;
}
private:
string name;
};
class Giraffe:public Animal{
public:
Giraffe(string n,char s):name(n),sex(s){}
void cry(){
cout<<"我叫"<<name<<"，是一只"<<((sex=='m')?"男":"女")<<"长颈鹿，我的脖子太长，发不出声音来"<<endl;
}
private:
string name;
char sex;
};
int main()
{
Animal *p;
p=new Animal();
p->cry();
Mouse m1("Jerry",'m');
p=&m1;
p->cry();
Mouse m2("Jemmy",'f');
p=&m2;
p->cry();
Cat c1("Tom");
p=&c1;
p->cry();
Dog d1("Droopy");
p=&d1;
p->cry();
Giraffe g1("Gill",'m');
p=&g1;
p->cry();
return 0;
}
运行结果：
