C++编程思想第五章隐藏实现习题_c++编程思想课后习题第五章-优快云博客

本文通过C++代码示例介绍了类的定义及成员的访问限制，包括public、protected和private成员，并展示了如何使用嵌套类实现不同层级的访问控制。

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 C++ Code 

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#include <iostream>
#include <string>
#include "myhead.h"
#include <cstdio>
using namespace std ;

class sharp
{
public:
    string a;
protected:
    string b;
private:
    string c;
public:
    sharp()//这里必须是public
    {
        //this->inital();
        this->a="public:";
        this->b ="protected:";
        this->c ="private:";
    }

};
int main(void)
{
    sharp check;
    cout<<check.a;
    cout<<check.b;
    check<<check.c;
    system("pause");
}

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#include <iostream>
using namespace std;

class hen
{
public:
    class next
    {
    public:
        class egg
        {
        public:
            void dispaly(void)
            {
                cout<<"egg"<<endl;
            }
        };
        void dispaly(void)
        {
            cout<<"next"<<endl;
        }
    };

    void dispaly(void)
    {
        cout<<"hen"<<endl;
    }
};

void main(void)
{
    //类的嵌套
    hen dage;
    //二级嵌套
    hen::next jidan;
    //三级嵌套
    hen::next::egg fuck;
    dage.dispaly();
    jidan.dispaly();
    fuck.dispaly();
    system("pause");
}