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這是怎麼得到「前兩天」使用boost::date
:使用boost :: date,我如何計算「上週一」?
boost::gregorian::date today = boost::gregorian::day_clock::local_day();
boost::date_time::day_functor<boost::gregorian::date> day_offset(-2);
boost::gregorian::date modified = today + day_offset.get_offset(today);
一個怎樣計算表示「上週一」的日期?