#include<iostream>

using namespace std;

class Parent
{
public:
    int mi;
    Parent()
    {
        cout << "&Parent.mi=" << &mi << endl;
    }
};

class Child : public Parent
{
public:
    int mi;
    Child()
    {
        cout << "&Child.mi=" << &mi << endl;
    }
};
int main()
{
    Child c;
    c.mi = 1000;//访问子类的
    c.Parent::mi = 100;//通过作用域分辨符来访问父类中的同名成员变量
    
    cout << endl;

    cout <<"&c.mi=" << &c.mi << endl;
    cout << "c.mi=" << c.mi << endl;

    cout << endl;

    cout << "&c.Parent::mi=" << &c.Parent::mi << endl;
    cout << "c.Parent::mi=" << c.Parent::mi << endl;
    return 0;
}

//输出结果
/*
&Parent.mi=0xbff768d8　　//注意是先调用的是父类的构造函数
&Child.mi=0xbff768dc

&c.mi=0xbff768dc
c.mi=1000

&c.Parent::mi=0xbff768d8
c.Parent::mi=100
*/

#include<iostream>

using namespace std;

class Parent
{
public:
    int mi;
    void add(int v)
    {
        mi += v;
    }

    void add(int x, int y)
    {
        mi += (x + y);
    }
};

class Child : public Parent
{
public:
    int mi;
    void add(int v)
    {
        mi += v;
    }

    void add(int x, int y, int z)
    {
        mi += (x + y + z);
    }

};
int main()
{
    Child c;
    c.mi = 1000;
    c.Parent::mi = 100;
    
    cout << "c.mi = " << c.mi << endl;
    cout << "c.Parent::mi = " << c.Parent::mi << endl;

    c.add(1);
    c.Parent::add(1);
    cout << "c.mi = " << c.mi << endl;
    cout << "c.Parent::mi = " << c.Parent::mi << endl;

//    c.add(1, 2);//子类没有这个函数，会编译出错，   子类中只要有一个函数与父类中的函数同名（同名即可），父类中所有同名的函数都会被隐藏起来
    c.Parent::add(1, 2);
    cout << "c.Parent::mi = " << c.Parent::mi << endl;
    return 0;
}

//输出结果
/*
c.mi = 1000
c.Parent::mi = 100
c.mi = 1001
c.Parent::mi = 101
c.Parent::mi = 104
*/