问题是如何体现母亲瞒着任何人在外面做小工以补贴家用？有程序是这样的
#include <iostream.h>
class Father
{
public:
void access_father()
{
repair_tv();
}
void driving( )
{
cout<<"father is driving!"<<endl;
}
protected:
void  repair_tv()
{
cout<<"father is repairing  TV!"<<endl;
}
friend class Mother;
};
class Mother
{
public:
void access_mother()
{
take_jobs();
}
void  singing()
{
cout<<"Mother is singing!"<<endl;
}
private:
void  take_jobs()
{
cout<<"Mother  is  working!"<<endl;
}
};
class Child:public Father,public Mother
{
public:
void repair_tv()
{
cout<<"the child is repair_tv!"<<endl;
}
void  playing_pingpong()
{
cout<<"The child  is  playing pingpong!"<<endl;
}
};
void main()
{
Father F;
Mother M;
Child C;
F.driving();
M.singing();
M.access_mother();
C.playing_pingpong();
C.driving();
C.singing();
C.repair_tv();
F.access_father();
}

但是如果在主程序里，运行C.access_monther(),结果也显示了Monther is working ,那岂不是小孩也知道了monther工作了，请大家帮忙看看，非常非常地感谢