14周项目一动物这样叫

/*  
*Copyright (c) 2013 ,烟台大学计算机与控制工程学院
*All rights reserved.  
*作者：王至超  
*完成日期：2014年05月27
*版本号：v1.0  
*问题描述：  
*样例输入： 
*样例输出：
*问题分析：用简单的方法，学会活学活用  
*/  
#include <iostream>
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:
    void cry()
    {
        if (sex=='m')
        {
            cout<<"我叫"<<name<<"是一只男老鼠，我的叫声是：吱吱吱！"<<endl;
        }
        else
        {
            cout<<"我叫"<<name<<"是一只女老鼠，我的叫声是：吱吱吱！"<<endl;
        }
    }
    Mouse (string,char);
protected:
    string name;
    char sex;
};
Mouse::Mouse (string nam,char sex1)
{
    name=nam;
    sex1=sex;
}
class Cat:public Animal
{
public:
    void cry()
    {
        cout<<"我叫"<<name<<"是一只猫,我的叫声是：喵喵喵！"<<endl;
    }
    Cat(string);
protected:
    string name;

};
Cat::Cat (string nam)
{
    name=nam;
}

class  Dog :public Animal
{
public:
    void cry()
    {
        cout<<"我叫"<<name<<"是一只狗，我的叫声是：汪汪汪！"<<endl;
    }
    Dog(string);
protected:
    string name;

};
Dog::Dog (string nam)
{
    name=nam;
}
class Giraffe :public Animal
{
public:
    void cry()
    {
        if (sex=='m')
        {
            cout<<"我叫"<<name<<"是男长颈鹿，我的脖子太长，发不出声音来"<<endl;
        }
        else
        {
            cout<<"我叫"<<name<<"是女长颈鹿，我的脖子太长，发不出声音来"<<endl;
        }
    }
 Giraffe (string,char);
protected:
    string name;
    char sex;
};
Giraffe::Giraffe (string nam,char sex1)
{
    name=nam;
    sex1=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;
}