014_linuxC++之_不同类型的继承

#include <iostream>
#include <string.h>
#include <unistd.h>

using namespace std;

class Father {
private:
    int money;

protected:
    int room_key;
    
public:
    int address;
    
    void it_skill(void)
    {
        cout<<"father's it skill"<<endl;
    }

    int getMoney(void)
    {
        return money;
    }

    void setMoney(int money)
    {
        this->money = money;
    }
};

class Son_pub : public Father {
private:
    int toy;
public:
    
    void play_game(void)
    {
        int m;
        
        cout<<"son play game"<<endl;

        /* money -= 1; 
         * 错: 不能直接拿父亲的私房钱
         */

        /*
         * 但是可以问他要
         */
        m = getMoney();
        m--;
        setMoney(m);

        room_key = 1; 
    }
};


class Son_pro : protected Father {
private:
    int toy;
public:
    
    void play_game(void)
    {
        int m;
        
        cout<<"son play game"<<endl;

        /* money -= 1; 
         * 错: 不能直接拿父亲的私房钱
         */

        /*
         * 但是可以问他要
         */
        m = getMoney();
        m--;
        setMoney(m);

        room_key = 1; 
    }
};


class Son_pri : private Father {
private:
    int toy;
public:
    
    void play_game(void)
    {
        int m;
        
        cout<<"son play game"<<endl;

        /* money -= 1; 
         * 错: 不能直接拿父亲的私房钱
         */

        /*
         * 但是可以问他要
         */
        m = getMoney();
        m--;
        setMoney(m);

        room_key = 1; 
    }
};


int main(int argc, char **argv)
{
    Son_pub s_pub;
    Son_pro s_pro;
    Son_pri s_pri;

    s_pub.play_game();
    s_pro.play_game();
    s_pri.play_game();


    s_pub.it_skill();
    //s_pro.it_skill();  // error
    //s_pri.it_skill();     // error

    return 0;
}