ruby – 我怎样才能找到一年前同一周的日期?
发布时间:2020-12-17 04:03:37 所属栏目:百科 来源:网络整理
导读:这是一周的例子,从星期日到星期六: 11/21/2010 - 11/27/2010 我想找到周日至周六同一周的日期,仅限去年. 解决方法 require 'date' # Included in Ruby's standard library,no gem needednow = Date.todaybefore = Date.civil( now.year-1,now.month,now.day
这是一周的例子,从星期日到星期六:
11/21/2010 - 11/27/2010 我想找到周日至周六同一周的日期,仅限去年. 解决方法require 'date' # Included in Ruby's standard library,no gem needed now = Date.today before = Date.civil( now.year-1,now.month,now.day ) sunday = Date.commercial( before.year,before.cweek,1 ) - 1 # Day 1 is Monday this_week_last_year = sunday..(sunday+6) 编辑:虽然Date.commercial很酷,但不需要.这是一个更简单的方法来查找本周开始的星期日: require 'date' now = Date.today before = Date.civil( now.year-1,now.day ) sunday = before - before.wday (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |