对象指针的使用方法

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

};
Time::Time(int h,int m, int s)
{
hour=h;
minute=m;
sec=s;
}
void Time::get_time()
{
cout<<hour<<":"<<minute<<":"<<sec<<endl;
}
int main()
{
Time t1(10,13,56);
int *p1=&t1.hour;
cout<<*p1<<endl;
t1.get_time();
Time *p2=&t1;
p2->get_time();