第十三周项目1-动物这样叫

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下面是给出的基类Animal声明和main()函数。

class Animal
{
public:
  virtual void cry()
    {
      cout<<"不知哪种动物，让我如何学叫？"<<endl;
    }
};
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;
}

/*
* Copyright (c) 2015,烟台大学计算机学院
* All right reserved.
* 作者：邵帅
* 文件：Demo.cpp
* 完成时间：2015年06月07日
* 版本号：v1.0
*/
#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:
    Mouse(string n,char s):name(n),sex(s){}
    virtual void cry()
    {
        cout<<"我叫"<<name<<",是一只"<<((sex=='f')?"女":"男")<<"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=='f')?"女":"男")<<"长颈鹿，我的脖子太长，但是发不出来声！"<<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;
}

/*
* Copyright (c) 2015,烟台大学计算机学院
* All right reserved.
* 作者：邵帅
* 文件：Demo.cpp
* 完成时间：2015年06月07日
* 版本号：v1.0
*/
#include <iostream>
#include <string>
using namespace std;
class Animal
{
public:
  virtual void cry()=0;
};
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=='f')?"女":"男")<<"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=='f')?"女":"男")<<"长颈鹿，我的脖子太长，但是发不出来声！"<<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;
}

/*
* Copyright (c) 2015,烟台大学计算机学院
* All right reserved.
* 作者：邵帅
* 文件：Demo.cpp
* 完成时间：2015年06月07日
* 版本号：v1.0
*/
#include <iostream>
#include <string>
using namespace std;
class Animal
{
public:
    Animal(string n):name(n){}
    virtual void cry()=0;
protected:
    string name;
};
class Mouse:public Animal
{
public:
    Mouse(string n,char s):Animal(n),sex(s) {}
    virtual void cry()
    {
        cout<<"我叫"<<name<<",是一只"<<((sex=='f')?"女":"男")<<"老鼠，我的叫声是：吱吱吱！"<<endl;
    }
private:
    char sex;
};
class Cat:public Animal
{
public:
    Cat(string n):Animal(n) {}
    virtual void cry()
    {
        cout<<"我叫"<<name<<",是一只猫，我的叫声是：喵喵喵！"<<endl;
    }
};
class Dog:public Animal
{
public:
    Dog(string n):Animal(n) {}
    virtual void cry()
    {
        cout<<"我叫"<<name<<",是一只狗，我的叫声是：汪汪汪！"<<endl;
    }
};
class Giraffe:public Animal
{
public:
    Giraffe(string n,char s):Animal(n),sex(s) {}
    virtual void cry()
    {
        cout<<"我叫"<<name<<",是一只"<<((sex=='f')?"女":"男")<<"长颈鹿，我的脖子太长，但是发不出来声！"<<endl;
    }
private:
    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;
}

@ Mayuko

第十三周项目1-动物这样叫

标签：

原文地址：http://blog.csdn.net/mayuko2012/article/details/46399047