利用C++多态实现 “小鸡哔哔”的歌词

#include<iostream>
using namespace std;

int flag=0;
char a[]="小鸡哔哔~bi~哟";
char b[]="小鸡哔哔哔哔~bi~哟";

void fa1() {cout<<a<<endl;}
void fa2() {cout<<b<<endl;}
void fa()  {cout<<a<<endl<<b<<endl;}
void fb()  {cout<<b<<endl<<a<<endl;}
void fc()  {cout<<b<<endl<<a<<endl<<b<<endl;}
void fd()  {cout<<b<<endl<<a<<endl<<b<<endl;}

class xiao_ji
{
public:
virtual void f1()
{
cout<<"你看那里有个小鸡哟"<<endl<<"你看那里它有小鸡哟"<<endl;
}

virtual void f2()const
{
if(flag==0)
{fa();fa();fa();}
else if(flag==1)
{fb();fb();fa2();}
else if(flag==2)
{fa();fa();}
else if(flag==3)
{fb();fa2();}
else if(flag==4)
{fa();fa();}
else if(flag==5)
{fb();fa2();}
else if(flag==6)
{fa();fa();}
else if(flag==7)
{fb();fa2();}
else if(flag==8)
{fa();fa();}
else if(flag==9)
{fb();fb();fa2();}
else if(flag==10)
{fb();fa2();fa2();}
flag++;
}

virtual void f3()const{}
};

class mu_ji:public xiao_ji
{
public:
virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有母鸡哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"母鸡咯咯咯咯咯~go~"<<endl;
}
};

class gong_ji:public mu_ji
{
public:

virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有公鸡哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"公鸡喔喔喔喔喔~wo~"<<endl;
this->mu_ji::f3();
}
};

class huo_ji:public gong_ji
{
public:
virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有火鸡哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"火鸡嘟嘟嘟嘟嘟~du~"<<endl;
this->gong_ji::f3();
}
};

class ge_zi:public huo_ji
{
public:
virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有鸽子哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"鸽子图噜噜噜噜~lu~"<<endl;
this->huo_ji::f3();
}
};

class mao_mi:public ge_zi
{
public:
virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有猫咪哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"猫咪喵喵喵喵喵~miao~"<<endl;
this->ge_zi::f3();
}
};

class xiao_gou:public mao_mi
{
public:
virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有小狗哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"小狗旺旺旺旺旺~wang~"<<endl;
this->mao_mi::f3();
}
};

class shan_yang:public xiao_gou
{
public:
virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有山羊哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"山羊咩~mie~"<<endl;
this->xiao_gou::f3();
}
};

class mian_yang:public shan_yang
{
public:
virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有绵羊哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"绵羊咇~bie~"<<endl;
this->shan_yang::f3();
}
};

class mu_niu:public mian_yang
{
public:
virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有母牛哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"母牛萌~meng~"<<endl;
this->mian_yang::f3();
}
};

class gong_niu:public mu_niu
{
public:
virtual void f1()
{
for(int i=0;i<2;i++)
cout<<"你看那里又有公牛哟"<<endl;
}

virtual void f2()const
{
this->xiao_ji::f2();
}

virtual void f3()const
{
cout<<"公牛呣~mu~"<<endl;
this->mu_niu::f3();
}
};

class tuo_laji:public xiao_ji
{
public:
virtual void f1(){}
void f2()const
{
for(int i=0;i<2;++i)
cout<<"你看那里有拖拉机哟"<<endl;
for(int i=0;i<3;++i)
cout<<"拖拉机嗡~weng~"<<endl;
cout<<"小鸡被撞 喔 啊喔~"<<endl;
}
};

int main()
{
xiao_ji* p[12];
p[0]=new xiao_ji;
p[1]=new mu_ji;
p[2]=new gong_ji;
p[3]=new huo_ji;
p[4]=new ge_zi;
p[5]=new mao_mi;
p[6]=new xiao_gou;
p[7]=new shan_yang;
p[8]=new mian_yang;
p[9]=new mu_niu;
p[10]=new gong_niu;
p[11]=new tuo_laji;

for(int i=0;i<12;++i)
{
p[i]->f1();
p[i]->f3();
p[i]->f2();
cout<<endl;
}
delete []p;
return 0;
}