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C++时间类的实现与使用

最新推荐文章于 2025-07-26 11:02:10 发布

原创最新推荐文章于 2025-07-26 11:02:10 发布 · 322 阅读

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#include #c

#include <iostream>

using namespace std;

class Time
{
     public:
   void set_time();
   void show_time();
   void add_seconds();
   void add_minutes();
   void add_hours();
private:
   bool is_time(int, int, int);
   int hour;
   int minute;
   int sec;
};

int main()
{
Time t1;
Time & t2 = t1;
t1.set_time();
t1.add_seconds();
t1.add_minutes();
t1.add_hours();
t2.show_time();
return 0;
}

void Time::set_time()
{
char c1, c2;
cout << "请输入时间（格式hh:mm:ss)";

while(1)
{
cin >> hour >> c1 >> minute >> c2 >> sec;

  if(c1 != ':' || c2 != ':')
   cout << "格式不正确，请重新输入" << 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;
}

void Time::add_hours()
{
int a;

cout << "请输入增加的小时:";

cin >> a;

hour = hour + a;

if(!is_time(hour, minute, sec))
cout << "时间非法，请重新输入" << endl;

}

void Time::add_minutes()
{
int a;

cout << "请输入增加的分钟:";

cin >> a;

minute = minute + a;

if(minute >= 60)
{
hour = hour + minute / 60;
minute = minute % 60;
}

if(!is_time(hour, minute, sec))
cout << "时间非法，请重新输入" << endl;

}

void Time::add_seconds()
{
int a;

cout << "请输入增加的秒数:";

cin >> a;

sec = sec + a;

if(sec >= 60)
{
  minute = minute + sec / 60;
     sec = sec % 60;

  if(minute >= 60)
  {
      hour = hour + minute / 60;
         minute = minute % 60;
  }
}

if(!is_time(hour, minute, sec))
cout << "时间非法，请重新输入" << endl;
}