2-2 Time类的定义

#include<iostream>#include<cstdio>using namespace std;class point{    private:    int hour,minute,second;public:    int sethour()    {        if(hour>12||hour<=0)            hour=12;        return hour;    }    int setminue()    {       if(minute>60||minute<0)            minute=0;     return minute;    }    int setsecond()    {        if(second>60||second<0)            second=0;        return second;    }    void setpoint( )    {        cin>>hour>>minute>>second;    }    void showpoint()    {       printf("%02d:%02d:%02d\n",hour,minute,second);    }};int main(){    class point t;    t.setpoint();    t.sethour();    t.setminue();    t.setsecond();    t.showpoint();    return 0;}