?? list1206.cpp
字號(hào):
//Listing 12.6 Hiding methods
#include <iostream>
using std::cout;
class Mammal
{
public:
void Move() const { cout << "Mammal move one step.\n"; }
void Move(int distance) const
{
cout << "Mammal move ";
cout << distance <<" steps.\n";
}
protected:
int itsAge;
int itsWeight;
};
class Dog : public Mammal
{
public:
// You might receive a warning that you are hiding a function!
void Move() const { cout << "Dog move 5 steps.\n"; }
};
int main()
{
Mammal bigAnimal;
Dog Fido;
bigAnimal.Move();
bigAnimal.Move(2);
Fido.Move();
// Fido.Move(10);
return 0;
}
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