ex3-8.cpp

来自「一些学习c++的例题」· C++ 代码 · 共 36 行

#include <iostream>

using namespace std;

class Y
{
private:
   int i;

public:
   Y() { i = 99; }

  friend class X;
  friend void func();
};

void func()
{
	Y o;
	
	cout << o.i << endl;   
}

class X
{
public:   
	void PrintY() { Y o; cout << o.i << endl; };
};

void main()
{
   func();
   X x;
   x.PrintY ();
}