06p3.cpp

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/*
NIIT 《C++ & CGI PROGRAMMING &SCRRIPTING》 Skill Base
教材P6.10	6.P.3
审核：周永 [e-mail]	23:31 2004-10-18
测试环境：Microsoft Windowsn 2000(VC++)；Red Hat Linux 7.3；Red Hat Linux 9.0
*/

#include<iostream> 
using namespace std;

class Base
{
protected :   //此处修改为protected
	int a;
	int b;
public  : 
	Base() 
	{
		a = 100;
		b = 200;
	}
	int print()
	{
		cout << a << " " << b;
	}
};


class Derived : public Base
{
private :  
	int c;
public  :  
	Derived()
	{
		c = 300;
	}
	void print()  //此处修改成为void
	{ 
		cout << a << " " << c; 
	}   
};

int main()
{
	Derived object;
	object.print();
	return 0;
}