Ruby時間方法概念總結
作者：佚名
Ruby時間方法在我們實際編程中是經常遇到的，對于一個剛剛Ruby初學者來說，需要充分掌握這一技巧的應用，以方便我們的應用。
Ruby語言在實際應用中可以幫助我們輕松的完成許多功能需求。其內置的大量方法是我們實現功能的前提。下面我們為大家介紹其中Ruby時間方法的相關方法。#t#
Ruby時間方法：
- puts 20.seconds #=> 20
- puts 20.minutes #=> 1200
- puts 20.hours #=> 72000
- puts 20.days #=> 1728000
- puts 20.weeks #=> 12096000
- puts 20.fortnights #=> 24192000
- puts 20.months #=> 51840000
- puts 20.years #=> 630720000
- puts Time.now #=> Thu May 18 23:29:14 CDT 2006
- puts 20.minutes.ago #=> Thu May 18 23:09:14 CDT 2006
- puts 20.hours.from_now #=> Fri May 19 19:29:14 CDT 2006
- puts 20.weeks.from_now #=> Thu Oct 05 23:29:14 CDT 2006
- puts 20.months.ago #=> Sat Sep 25 23:29:16 CDT 2004
- puts 20.minutes.until("2006-12-25 12:00:00".to_time)
- #=> Mon Dec 25 11:40:00 UTC 2006
- puts 20.minutes.since("2006-12-25 12:00:00".to_time)
- #=> Mon Dec 25 12:20:00 UTC 2006
- now = Time.now
- puts now #=> Thu May 18 23:36:10 CDT 2006
- puts now.to_date #=> 2006-05-18
- puts now.to_s #=> Thu May 18 23:36:10 CDT 2006
- puts now.to_s(:short) #=> 18 May 23:36
- puts now.to_s(:long) #=> May 18, 2006 23:36
- puts now.to_s(:db) #=> 2006-05-18 23:36:10
- puts now.to_s(:rfc822) #=> Thu, 18 May 2006 23:36:10 -0500
- puts now.ago(3600) #=> Thu May 18 22:36:10 CDT 2006
- puts now.at_beginning_of_day #=> Thu May 18 00:00:00 CDT 2006
- puts now.at_beginning_of_month #=> Mon May 01 00:00:00 CDT 2006
- puts now.at_beginning_of_week #=> Mon May 15 00:00:00 CDT 2006
- puts now.beginning_of_quarter #=> Sat Apr 01 00:00:00 CST 2006
- puts now.at_beginning_of_year #=> Sun Jan 01 00:00:00 CST 2006
- puts now.at_midnight #=> Thu May 18 00:00:00 CDT 2006
- puts now.change(:hour => 13) #=> Thu May 18 13:00:00 CDT 2006
- puts now.last_month #=> Tue Apr 18 23:36:10 CDT 2006
- puts now.last_year #=> Wed May 18 23:36:10 CDT 2005
- puts now.midnight #=> Thu May 18 00:00:00 CDT 2006
- puts now.monday #=> Mon May 15 00:00:00 CDT 2006
- puts now.months_ago(2) #=> Sat Mar 18 23:36:10 CST 2006
- puts now.months_since(2) #=> Tue Jul 18 23:36:10 CDT 2006
- puts now.next_week #=> Mon May 22 00:00:00 CDT 2006
- puts now.next_year #=> Fri May 18 23:36:10 CDT 2007
- puts now.seconds_since_midnight #=> 84970.423472
- puts now.since(7200) #=> Fri May 19 01:36:10 CDT 2006
- puts now.tomorrow #=> Fri May 19 23:36:10 CDT 2006
- puts now.years_ago(2) #=> Tue May 18 23:36:10 CDT 2004
- puts now.years_since(2) #=> Sun May 18 23:36:10 CDT 2008
- puts now.yesterday #=> Wed May 17 23:36:10 CDT 2006
- puts now.advance(:days => 30) #=> Sat Jun 17 23:36:10 CDT 2006
- puts Time.days_in_month(2) #=> 28
- puts Time.days_in_month(2, 2000) #=> 29
以上就是Ruby時間方法的相關知識講解。
責任編輯：曹凱
來源：
博客園
