【C++】一个时钟类的实现

clock.h

#ifndef CLOCK_H_INCLUDED
#define CLOCK_H_INCLUDED
using namespace std;

class Clock
{
    public:
        Clock (int h,int m,int s):h(h),m(m),s(s){};
        void settime(int h,int m,int s);
        void showtime();
    private:
        int h;
        int m;
        int s;
    };

#endif // CLOCK_H_INCLUDED

time.cpp

#include <iostream>
#include"clock.h"
using namespace std;

void Clock::settime(int h,int m,int s )
{
    this->h=h;
    this->m=m;
    this->s=s;
}

void Clock::showtime()
{
    cout<<" h="<<h<<" m="<<m<<" s="<<s<<endl;
}

main.cpp

#include <iostream>
#include"clock.h"
using namespace std;

int main()
{
    cout << "Hello world!" << endl;
    Clock clock(0,0,0);
    clock.showtime();
    cout<<"enter"<<endl;
    int h,m,s;
    cin>>h>>m>>s;
    clock.settime(h,m,s);
    clock.showtime();

    return 0;
}