lab7_1.cpp

来自「清华大学出版社出版的c++程序设计课本」· C++ 代码 · 共 25 行

#include <iostream.h>

class Animal
{
public:
	int age;
public:
    Animal(){};
	~Animal(){};
};

class Dog : private Animal
{ 
public:
	Dog(){};
	~Dog(){};
	void SetAge(int n){ age = n;}
};

void main()
{
	Dog a;
	a.SetAge(10);
}