类 函数 输出时间

#include<iostream>

using namespace std;

class Time

{

public:

int hour;

int minute;

int sec;

};

int main()

{

void set_time(Time&,int hour=0,int minute=0,int sec=0);

void show_time(Time&);

Time t1;

set_time(t1,12,23,34);

show_time(t1);

Time t2;

set_time(t2);

show_time(t2);

return 0;

}

void set_time(Time&t,int hour,int minute,int sec)

{

t.hour=hour;

t.minute=minute;

t.sec=sec;

}

void show_time(Time &t)

{

cout<<t.hour<<":"<<t.minute<<":"<<t.sec<<endl;

}