第十三周--动物怎么叫（1）

#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){};
virtual 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){}
virtual 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){}
virtual void cry()
{
cout<<"我叫"<<name<<",是一只狗， 我的叫声是:汪汪汪"<<endl;
}
private:
string name;
};
class Giraffe:public Animal
{
public:
Giraffe(string n,char s):name(n),sex(s){}
virtual 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;
}