十四周任務一

/** 程式的著作權和版本聲明部分* Copyright (c)2013, 煙台大學電腦學院學生* All rightsreserved.* 檔案名稱：score.cpp                           * 作    者：   劉元龍                         * 完成日期： 2013 年5 月 31  日* 版本號碼： v1.0      * 輸入描述：* 問題描述:* 輸出：*/#include<iostream>#include<string>using namespace std;class animal{public:  virtual void cry()    {      cout<<"不知哪種動物，讓我如何學叫？"<<endl;    }protected:    string name;};//定義老鼠類class mouse :public  animal{  public:      mouse(string,int);      virtual void cry();  protected:      int sex;};mouse::mouse(string b,int a){    name=b;    sex=a;} void mouse::cry(){    cout<<"我叫"<<name<<",是一隻";    if(sex==1)       cout<<"男老鼠，";    else        cout<<"女老鼠，";    cout<<"我的叫聲是：吱吱吱!";    cout<<endl;}//定義貓類class cat :public  animal{  public:      virtual void cry();      cat(string);};cat::cat(string b){    name=b;}void cat::cry(){    cout<<"我叫"<<name<<",是一隻貓，我的叫聲是：喵喵喵！";    cout<<endl;}//定義狗類class dog :public  animal{  public:      virtual void cry();      dog(string);};dog::dog(string b){    name=b;}void dog::cry(){    cout<<"我叫"<<name<<",是一隻狗，我的叫聲是：WangWang旺！";    cout<<endl;}//定義長頸鹿類class giraffe :public  animal{  public:      giraffe(string,int);      virtual void cry();  protected:      int sex;};giraffe::giraffe(string b,int a){    name=b;    sex=a;}void giraffe::cry(){    cout<<"我叫"<<name<<",是一隻";    if(sex==1)        cout<<"男長頸鹿，";    else        cout<<"女長頸鹿，";    cout<<"我脖子太長，發不出聲音!";    cout<<endl;}int main( ){    animal *p;    p = new animal();    p->cry();    mouse m1("Jerry",1);    p=&m1;    p->cry();    mouse m2("Jemmy",2);    p=&m2;    p->cry();    cat c1("Tom");    p=&c1;    p->cry();    dog d1("Droopy");    p=&d1;    p->cry();    giraffe g1("Gill",1);    p=&g1;    p->cry();    return 0;}

運行結果：