大一第二学期第5周【程序阅读（3）】

#include <iostream>
using namespace std;
class Time
{
public:
    Time(int,int,int);
    void output_time( );
    int hour;
    int minute;
    int sec;
};

Time::Time(int h,int m,int s)
{
    hour=h;
    minute=m;
    sec=s;
}

void Time::output_time( )
{
    cout<<hour<<":";
    cout<<minute<<":" <<sec<<endl;
}

int main( )
{
    Time t1(10,13,56);
    int *p1=&t1.hour; //指向数据成员的指针
    cout<<*p1<<endl;
    t1.output_time( );

    Time *p2=&t1; //指向对象的指针
    p2->output_time( );

    void (Time::*p3)( ); //指向成员函数的指针
    p3=&Time::output_time;
    (t1.*p3)( );
    return 0;
}