第十三周上机实践——项目2-动物这样叫-（2）&（3）

/*
*Copyright (c)2016,烟台大学计算机与控制工程学院
*All rights reserved.
*文件名称：main.cpp,Animal.h,Animal.cpp
*作    者：郭永恒
*完成日期：2016年5月28日
*版 本 号：v1.0
*
*问题描述：把Animal设置成抽象类,name作为Animal的成员
*/

Animal.h

#ifndef ANIMAL_H_INCLUDED
#define ANIMAL_H_INCLUDED
#include <iostream>
class Animal
{
public:
Animal(std::string nam):name(nam){}
virtual void cry() = 0;
protected:
std::string name;
};

class Mouse: public Animal
{
public:
Mouse(std::string nam,char se):Animal(nam),sex(se){}
void cry();
private:
char sex;
};

class Cat:public Animal
{
public:
Cat(std::string nam):Animal(nam){}
void cry();
};

class Dog:public Animal
{
public:
Dog(std::string nam):Animal(nam){}
void cry();
};

class Giraffe:public Animal
{
public:
Giraffe(std::string nam,char se):Animal(nam),sex(se){}
void cry();
private:
char sex;
};

#endif // ANIMAL_H_INCLUDED
Animal.cpp
#include "Animal.h"

void Mouse::cry()
{
std::cout << " 我叫" << name << ",是一只";
if(sex == 'm')
std::cout << " 男";
else
std::cout << " 女";
std::cout << " 老鼠，我的叫声是吱吱吱！" << std::endl;
}

void Cat::cry()
{
std::cout << " 我叫" << name << ",是一只猫，我的叫声是：喵喵喵！" << std::endl;
}

void Dog::cry()
{
std::cout << " 我叫" << name << ",是一条狗，我的叫声是：汪汪汪！" << std::endl;
}

void Giraffe::cry()
{
std::cout << " 我叫" << name << ",是";
if(sex == 'm')
std::cout << " 男";
else
std::cout << " 女";
std::cout << " 长颈鹿，我的脖子太长，发不出声音来！" << std::endl;
}
main.cpp
#include "Animal.h"
#include <iostream>
using namespace std;

int main()
{
Animal *p;
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：