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  • boost::gregorian日期

    #include <cstdio>
    #include <iostream>
    #include <sstream>
    
    #include <boost/date_time/gregorian/gregorian.hpp>
    
    using namespace std;
    using namespace boost;
    
    int main()
    {
        //使用构造函数创建date
        gregorian::date gdt0(2020, gregorian::Jan, 1);
        //使用day_clock创建date
        gregorian::date gdt1 = gregorian::day_clock::local_day();
        gregorian::date gdt2 = gregorian::day_clock::universal_day();
        gregorian::date gdt3(gregorian::not_a_date_time);//无效的日期
        gregorian::date gdt4(gregorian::max_date_time);//最大日期
        gregorian::date gdt5(gregorian::min_date_time);//最小日期
        cout << gdt0 << endl;
        gregorian::day_iterator dayIter(gdt0);
        gregorian::month_iterator monthIter(gdt0);
        gregorian::year_iterator yearIter(gdt0);
        
        //日期长度
        gregorian::days d(1);//
        gregorian::weeks w(1);//星期
        gregorian::months m(1);//
        gregorian::years y(1);//
    
        gdt0 += d;
        gdt0 += w;
        gdt0 += m;
        gdt0 += y;
        cout << gdt0 << endl;
    
        gregorian::date::ymd_type ymd = gdt0.year_month_day();
        cout << ymd.year << "-" << ymd.month << "-" << ymd.day << endl;
    
        cout << "星期几:" << gdt0.day_of_week() << endl;
        cout << "一年中第几天:" << gdt0.day_of_year() << endl;
        cout << "一年中的第几个星期:" << gdt0.week_number() << endl;
        cout << "当月最后一天的日期:" << gdt0.end_of_month() << endl;
    
        //和tm结构的转换
        tm t = gregorian::to_tm(gdt0);
        cout << (t.tm_year + 1900) << "-" << (t.tm_mon + 1) << "-" << t.tm_mday << " " << t.tm_hour << ":" << t.tm_min << ":" << t.tm_sec << endl;
        
        return EXIT_SUCCESS;
    }
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  • 原文地址:https://www.cnblogs.com/osbreak/p/14492887.html
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