list1207.cpp

teach yourself C++ in 21 days 第五版

//Listing 12.7 Calling base method from overridden method.
#include <iostream>
using namespace std;

class Mammal
{
  public:
     void Move() const { cout << "Mammal move one step\n"; }
     void Move(int distance) const
    {
       cout << "Mammal move " << distance;
       cout << " steps." << endl;
    }

  protected:
    int itsAge;
    int itsWeight;
};

class Dog : public Mammal
{
  public:
    void Move()const;
};

void Dog::Move() const
{
   cout << "In dog move...\n";
   Mammal::Move(3);
}

int main()
{
   Mammal bigAnimal;
   Dog Fido;
   bigAnimal.Move(2);
   Fido.Mammal::Move(6);
   return 0;
}