[C++知识库]C++源码

1.

class Animal{
public:
    Animal(std::string theName);
    std::string name;
}
class Pig:public Animal{
public:
    Pig(std::string theName);
}

2.

#include<iostream>
#include<string>
class Lovers
{
public:
    Lovers(std::string theName);
    void kiss(Lovers *lover);
    void ask(Lovers *lover,std::string something);

protected:
    std::string name;

    friend class Others;
};

class Boyfriend:public Lovers
{
public:
    Boyfriend(std::string theName);   
};

class Girlfriend:public Lovers
{
public:
    Girlfriend(std::string theName);
};

class Others
{
public:
    Others(std::string theName);
    void kiss(Lovers *lover);

protected:
    std::string name;        
};

Lovers::Lovers(std::string theName)
{
    name=theName;
}

void Lovers::kiss(Lovers *lover)
{
    std::cout<<name <<"亲亲我们家的"<<lover->name<<std::endl;
}

void Lovers::ask(Lovers *lover,std::string something)
{
    std::cout<<"宝贝儿"<<lover->name<<"帮我"<<something<<std::endl;
}

Boyfriend::Boyfriend(std::string theName):Lovers(theName)
{
}

Girfriend::Girfriend(std::string theName):Lovers(theName)
{
}
Others::Others(std::string theName)
{
    name=theName;
}

void Others::kiss(Lovers *lover)
{
    std::cout<<name<<"亲一下"<<lover->name<<std::endl;
}

int main()
{
    Boyfriend boyfriend("A");
    Girlfriend girlfriend("B");
    
    Others others("路人甲")；
    
    girlfriend.kiss(&boyfriend);
    girlfriend.ask(&boyfrieng,"洗衣服啦");

    std::cout<<"\n路人甲登场。。。\n";
    others.kiss(&girlfriend)
}