#include<iostream> using namespace std; class Date; class Time{ public: Time(int,int,int); friend void display(Date &,Time &); private: int hour; int min; int sec; }; Time::Time(int h,int m,int s){ hour = h; min = m; sec = s; } class Date{ public: Date(int,int,int); friend void display(Date&,Time&); private: int day; int month; int year; }; Date::Date(int y,int m,int d){ year = y; month = m; day = d; } void display(Date &d,Time &t){ cout<<t.hour<<":"<<t.min<<":"<<t.sec<<endl; cout<<d.year<<"/"<<d.month<<"/"<<d.day<<endl; } int main(){ Time time(1,2,3); Date date(4,5,6); display(date,time); return 0; }
第3章 10.友元函数
猜你喜欢
转载自blog.csdn.net/sinat_39360638/article/details/80720543
今日推荐
周排行