通过this对象访问静态成员函数？？

#include <iostream>

using namespace std ;

class Base {
public:
    static void statmem( ) ;
};

class Derived :public Base {
public:
    void f( const Derived& ) const ;
   
};

void Derived::f(const Derived& derived_obj) const {

    cout << "调用常量成员函数" << endl;
    Base::statmem( ) ;
    Derived::statmem() ;//Derived继承了statmem
    //派生类的对象能访问基类的静态成员
    derived_obj.statmem(); //通过Derived对象访问
    statmem(  ) ;//通过this对象访问
}

void Base::statmem() {
    cout << "访问" << endl ;
}

int main(  )
{
    const Derived constobj ;
    constobj.f( constobj ) ;
   

    return 0 ;
}