类的继承访问

//Test1.h
#include<iostream>
using namespace std;

class Father
{
private:
    double f;
protected:
    void Show_F();
public:
    Father():f(0)
    {}
    ~Father()
    {}
    void Print_F();
};
class Son1 : public Father
{
private:
    int s;
protected:
    void Show_S1();
public:
    Son1():s(0)
    {}
    ~Son1()
    {}
    void Print_S1();
};
class Son2 : protected Father
{
private:
    int s;
protected:
    void Show_S2();
public:
    Son2():s(0)
    {}
    ~Son2()
    {}
    void Print_S2();
};
class Son3 : private Father //等价 class Son3 : Father
{
private:
    int s;
protected:
    void Show_S3();
public:
    Son3():s(0)
    {}
    ~Son3()
    {}
    void Print_S3();
};
void Father::Show_F()
{
    cout<<"It‘s father protected. "<<endl;
}
void Father::Print_F()
{
    cout<<"It‘s father public. "<<endl;
}
void Son1::Show_S1()
{
    cout<<"It‘s son1 protected. "<<endl;
    this->Show_F();
    this->Print_F();
}
void Son1::Print_S1()
{
    cout<<"It‘s son1 public. "<<endl;
    this->Show_F();
    this->Print_F();
    this->Show_S1();
    
}
void Son2::Show_S2()
{
    cout<<"It‘s son2 protected. "<<endl;
    this->Show_F();
    this->Print_F();
}
void Son2::Print_S2()
{
    cout<<"It‘s son2 public. "<<endl;
    this->Show_F();
    this->Print_F();
    this->Show_S2();
}
void Son3::Show_S3()
{
    cout<<"It‘s son3 protected. "<<endl;
    this->Show_F();
    this->Print_F();
}
void Son3::Print_S3()
{
    cout<<"It‘s son3 public. "<<endl;
    this->Show_F();
    this->Print_F();
    this->Show_S3();
}

//Test.cpp
#include"Test1.h"
void main()
{
    Son1 st1;
    Son2 st2;
    Son3 st3;
    st1.Print_F();
    cout<<"*****************"<<endl;
    st1.Print_S1();
    cout<<"*****************"<<endl;
    st1.Print_S1();
    cout<<"*****************"<<endl;
    st3.Print_S3();
}