第五周项目3-时间类（增加n秒）

来源：互联网发布：海岛奇单导弹升级数据编辑：程序博客网时间：2024/05/17 08:16

代码：

#include<iostream>using namespace std;class Time   {   public:   void set_time();   void show_time();   void add_a_sec(int n1);   void add_a_minute(int n2);   void add_a_hour(int n3);   private:   int sec;   int minute;   int hour;   bool is_time(int,int,int);   };void Time::set_time(){char c1,c2;    cout<<"请输入时间（格式hh:mm:ss）"<<endl;while(1){cin>>hour>>c1>>minute>>c2>>sec;if(c1!=':'||c2!=':')cout<<"格式不正确重输"<<endl;        else if(!is_time(hour,minute,sec))            cout<<"时间非法，请重新输入"<<endl;        else            break;}}void Time::show_time(){    cout<<hour<<":"<<minute<<":"<<sec<<endl;}bool Time::is_time(int h,int m,int s){    if(h<0||h>24||m<0||m>60||s<0||s>60)        return false;    return true;}inline void Time::add_a_sec(int n1){    if(n1+sec>59)    {        sec=(n1+sec)%60;        minute=(n1+sec)/60+minute;         if(minute>59)        {            hour++;            minute=0;        }    }    else    {        sec=sec+n1;    }}inline void Time::add_a_minute(int n2){    if(n2+minute>59)    {        minute=(n2+minute)%60;        hour=(n2+minute)/60+hour;         if(hour>23)        {            hour=hour-24;        }    }    else    {       minute=minute+n2;    }}inline void Time::add_a_hour(int n3){   if(n3+hour>23)    {        hour=(n3+hour)%24;    }    else    {        hour=hour+n3;    }}int main()   {   Time t1;   t1.set_time();       t1.add_a_sec(1);   t1.add_a_minute(11);   t1.add_a_hour(33);   t1.show_time();       return 0;   }

运行测试：

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