C++ 恢复访问权限示例

#include<iostream>
#include<string>
using namespace std;

class A
{
	int i;
public:
	void seta(int a){i=a;}
	void dispa(){cout<<"i="<<i<<endl;}
};

class B:private A
{
	int j;
public:
	A::seta;//访问声明
	A::dispa;//访问声明
	void setb(int y){j=y;}
	void dispb(){cout<<"j="<<j<<endl;}
};

int main()
{
	B b;
	b.seta(1);
	b.dispa();
	b.setb(2);
	b.dispb();
	return 0;
}