8.14.cpp

来自「这是C++的一部分练习程序!对初学者有一定的帮助作用。」· C++ 代码 · 共 33 行

#include <iostream.h>
class X
{
	friend class Y;
  public:
	X(int i)
	{  x=i;  }
	void Print()
	{  cout<<"x="<<x<<','<<"s="<<s<<endl;  }
  private:
	int x;
	static int s;
};
int X::s=5;
class Y
{
  public:
	Y(int i)
	{  y=i;  }
	void Print(X &r)
	{  cout<<"x="<<r.x<<','<<"y="<<y<<endl;  }
  private:
	int y;
};
void main()
{
	X m(2);
	m.Print();
	Y n(8);
	n.Print(m);
}