C++ boost 时间与日期处理详细介绍

#include <boost/timer.hpp> #include <boost/progress.hpp> #include <iostream> #include <sstream> #include <fstream> #include <string> #include <vector> #include <Windows.h>  #include <boost/date_time/gregorian/gregorian.hpp> #include <boost/date_time/posix_time/posix_time.hpp>  using namespace std;  int main() {   boost::timer t;   std::cout<<"Max "<<t.elapsed_max()<<endl;   std::cout<<"Min "<<t.elapsed_min()<<endl;   std::cout<<"elapsed: "<<t.elapsed()<<endl;   t.restart();   Sleep(100);   std::cout<<"elapsed: "<<t.elapsed()<<endl;    cout<<"---------------------------"<<endl;   stringstream ss;   {     boost::progress_timer t(ss);      Sleep(300);   }   cout<<ss.str();   cout<<"---------------------------"<<endl;    vector<string> v(100);   //Do Data Fill......    ofstream fs("c:/test.txt");    boost::progress_display pd(v.size());   vector<string>::iterator pos;   for (pos = v.begin();pos != v.end();++pos)   {     fs<<*pos<<endl;     Sleep(10);     ++pd;     //pd.restart(v.size());     //pd+=(pos-v.begin() +1);   }   cout<<"---------------------------"<<endl;      {     using namespace boost::gregorian;     cout<<"----------------- date ------------------"<<endl;     date d1;     date d2(2013,4,7);     date d3(2013,Apr,7);     date d4(d2);      assert(d1 == date(not_a_date_time)); //默认初始化为无效日期     assert(d2 == d4);     assert(d3 == d2);          d1 = from_string("1999,9,9");     date d5 (from_string("2008/8/8"));     d3 = from_undelimited_string("20110111");          cout<<day_clock::local_day()<<endl;     cout<<day_clock::universal_day()<<endl;      date d6 (neg_infin);     date d7(pos_infin);     cout<<d6<<endl;     cout<<d7<<endl;      cout<<"---------------------------"<<endl;     date today (2013,4,17);     assert(today.year() == 2013);     assert(today.month() == 4);     assert(today.day() == 17);      date::ymd_type ymd = today.year_month_day();     assert(ymd.year == 2013);     assert(ymd.month == 4);     assert(ymd.day == 17);      assert(today.day_of_week() == 3); //星期几 周日为0     cout<<today.day_of_year()<<endl;  //在一年中是第几天     assert(today.end_of_month() == date(2013,4,30));  //当月的最后一天     cout<<today.week_number()<<endl;  //当年的第几周 范围0~53 年初的半周归为上一年，即53     assert(d6.is_infinity());      //日期为无限日期     assert(d6.is_neg_infinity());     cout<<"---------------------------"<<endl;      cout<<to_simple_string(today)<<endl;     cout<<to_iso_string(today)<<endl;         cout<<to_iso_extended_string(today)<<endl; //常用日期格式YYYY-MM-DD     cout<<today<<endl;        cout<<"---------------------------"<<endl;     tm t = to_tm(today);       assert(t.tm_hour == 0 && t.tm_min == 0);          date new_today = date_from_tm(t);  //从tm转为date     assert(new_today == today);      cout<<"-------------- days(date_duration) --------------"<<endl;     days dd1(10),dd2(-20),dd3(365);     assert(dd1>dd2 &&dd1<dd3);     assert(dd1+dd2 == days(-10));     assert((dd2+dd3).days() == 345);     assert(dd3/5 == days(73));      weeks w(3);   //3个星期     assert(w.days() == 21);          months m(5);     years y(2);      months m2 = y+m;     assert(m2.number_of_months() == 29);     assert((y*2).number_of_years() == 4);      cout<<"-------------- Calc --------------"<<endl;     date dA(2000,1,1),dB(2008,8,8);     cout<<dB-dA<<endl;   //3142天          dA+=days(10);     assert(dA.day() == 11);     dA+=months(2);     assert(dA.month() ==3 && dA.day()== 11);      dA-=weeks(1);     assert(dA.day() == 4);      dB-=years(7);     assert(dA.year() == dB.year()-1);      //如果日期是月末的最后一天，加减月或年会得到月末的时间，而不是简单的月、年加1     date sp(2013,3,30);     sp-=months(1);     assert(sp.month() == 2 && sp.day() == 28);     sp -=months(1);     assert(sp.month()== 1 && sp.day()== 31);     sp+=months(2);     assert(sp.day() == 31); //与原来的日期已经不相等！      cout<<"-------------- date_period --------------"<<endl;     date_period dp(date(2013,4,17),days(14));  //左开右闭与STL的容器相似     assert(!dp.is_null());     assert(dp.begin().day() == 17);     assert(dp.last().day() == 30);     assert(dp.end().day() == 1);      cout<<dp<<endl;      date_period new_dp = dp;     new_dp.shift(days(3));   //将时间区间向后移动     assert(new_dp.begin().day() == 20);     assert(new_dp.length().days() == 14);           new_dp.expand(days(3));   //区间两段延长n天，即延长2n天。     assert(new_dp.begin().day() == 17);     assert(new_dp.length().days() == 20);      assert(dp.is_after(date(2013,1,1)));     assert(dp.contains(date(2013,4,20)));      date_period dp2 (date(2013,4,17),days(5));     assert(dp.contains(dp2));          assert(dp.intersects(dp2));   //交集     assert(dp.intersection(dp2) == dp2);          date_period dp3 (date(2013,5,1),days(5));     assert(!dp3.intersects(dp));     assert(dp3.intersection(dp2).is_null());      assert(dp.is_adjacent(dp3));          date_period dp4(date(2013,4,17),days(19)); //并集     assert(dp.merge(dp3).is_null());  //无交集返回空     assert(dp.span(dp3) == dp4);    //填充中间区域       cout<<"-------------- date_iterator --------------"<<endl;     date last(2013,4,17);      day_iterator d_iter(last); //日期迭代器      assert(d_iter == last);     ++d_iter;     assert(d_iter == date(2013,4,18));      year_iterator y_iter(*d_iter,3);  //增减步长为3     assert(y_iter == last + days(1));      ++y_iter;     assert(y_iter->year() == 2016);        cout<<"-------------- func --------------"<<endl;     cout<<(gregorian_calendar::is_leap_year(2000)? "Yes":"no")<<endl;  //闰年     assert(gregorian_calendar::end_of_month_day(2013,2) == 28);   //月末天        }      {     using namespace boost::posix_time;     cout<<"-------------- time_duration --------------"<<endl;     time_duration td(1,1,1);  //时、分、秒 会自动借、进位     hours h0(1);     minutes m(1);     seconds s(1);     millisec ms(1);          time_duration td2 = h0+m+s+ms;     time_duration td3 = hours(2) + minutes(10);     time_duration td4 = duration_from_string("1:10:10:300");      assert(td4.hours() == 1 && td4.minutes() == 10 && td4.seconds() == 10);      assert(td.total_seconds() == 1*3600 + 1*60 +1); //转为sec      hours h(-10);     assert(h.is_negative());      time_duration h2 = h.invert_sign(); //取反     assert(!h2.is_negative() && h2.hours() == 10);      cout<<td3-td2<<endl;     cout<<to_simple_string(td4)<<endl;     cout<<to_iso_string(td4)<<endl;          cout<<"-------------- ptime --------------"<<endl;     {       using namespace boost::gregorian;       ptime p(date(2013,4,17),hours(1)); //ptime相当于date+time_duration       ptime p1 = time_from_string("2013-4-17 16:25:00");       cout<<p<<endl;       cout<<p1<<endl;       ptime p2 = second_clock::local_time();     //常用时间输出       ptime p3 = microsec_clock::universal_time();  //微秒精度       cout<<p2<<endl<<p3<<endl;        ptime op(date(2013,4,17),hours(1)+minutes(30));        date d = op.date();       time_duration optd = op.time_of_day();       assert(d.day() == 17 && d.month() == 4);       assert(optd.hours() == 1 && optd.minutes() == 30);       cout<<to_iso_extended_string(op)<<endl;        tm t = to_tm(op);  //不可逆，此处与date不同                 //只能用date_from_tm先得到日期，再填充时间。              cout<<"-------------- time_period --------------"<<endl;       time_period tp1 (op,hours(8));       time_period tp2(op+hours(8),hours(1));       assert(tp1.end() == tp2.begin() && tp1.is_adjacent(tp2));       assert(!tp1.intersects(tp2));        tp1.shift(hours(1));       assert(tp1.is_after(op));       assert(tp1.intersects(tp2));        tp2.expand(hours(10));       assert(tp2.contains(op) && tp2.contains(tp1));        cout<<"-------------- time_iterator --------------"<<endl;       for (time_iterator t_iter(op,minutes(10));t_iter<op+hours(1);++t_iter)       {         cout<<*t_iter<<endl;       }       cout<<"-------------- formate --------------"<<endl;       date_facet* dfacet = new date_facet("%Y 年%m 月%d 日");       cout.imbue(locale(cout.getloc(),dfacet));       cout<<date(2013,4,17)<<endl;        time_facet* tfacet = new time_facet("%Y 年%m 月%d 日 %H点%M分%S%F秒");       cout.imbue(locale(cout.getloc(),tfacet));       cout<<op<<endl;     }   }    getchar();   return 0; } 

Max 2.14748e+006 Min 0.001 elapsed: 0.001 elapsed: 0.1 --------------------------- 0.30 s --------------------------- 0% 10 20 30 40 50 60 70 80 90 100% |----|----|----|----|----|----|----|----|----|----| *************************************************** --------------------------- ----------------- date ------------------ 2013-Apr-17 2013-Apr-17 -infinity +infinity --------------------------- 107 16 --------------------------- 2013-Apr-17 20130417 2013-04-17 2013-Apr-17 --------------------------- -------------- days(date_duration) -------------- -------------- Calc -------------- 3142 -------------- date_period -------------- [2013-Apr-17/2013-Apr-30] -------------- date_iterator -------------- -------------- func -------------- Yes -------------- time_duration -------------- 01:08:58.999000 01:10:10.300000 011010.300000 -------------- ptime -------------- 2013-Apr-17 01:00:00 2013-Apr-17 16:25:00 2013-Apr-17 17:19:21 2013-Apr-17 09:19:21.870604 2013-04-17T01:30:00 -------------- time_period -------------- -------------- time_iterator -------------- 2013-Apr-17 01:30:00 2013-Apr-17 01:40:00 2013-Apr-17 01:50:00 2013-Apr-17 02:00:00 2013-Apr-17 02:10:00 2013-Apr-17 02:20:00 -------------- formate -------------- 2013 年04 月17 日 2013 年04 月17 日 01点30分00秒