请问Ruby里面有什么方法能将两个datetime减出来的数值转换为小时吗？ - V2EX
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pinkman
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请问Ruby里面有什么方法能将两个datetime减出来的数值转换为小时吗？

  •   
  •   pinkman Nov 22, 2013 4572 views
    This topic created in 4553 days ago, the information mentioned may be changed or developed.
    s = Fri, 22 Nov 2013 00:44:00 CST +08:00
    e = Sun, 22 Dec 2013 00:00:00 CST +08:00
    e - s
    => 2589360.0

    将2589360.0转换为譬如43小时
  • CST
  • 2589360.0
    5 replies    1970-01-01 08:00:00 +08:00
    leiz
        1
    leiz  
       Nov 22, 2013
    ruby原生没，rails有 (e-s).hours
    leiz
        2
    leiz  
       Nov 22, 2013
    我搞错，.hours是转换当前hour为seconds
    pinkman
        3
    pinkman  
    OP
       Nov 22, 2013
    @leiz 我发现貌似直接除以3600就可以了，在rails里面要除以两个3600才行，不知道为何（.hours/3600/3600）
    lichao
        4
    lichao  
       Nov 22, 2013
    楼主数学不及格
    victor
        5
    victor  
       Nov 22, 2013
    @pinkman
    a = Time.now 过一会再 b = Time.now
    (b-a)/60/60 #=> 0.012131181666666666

    建议听 @lichao 的话，小学毕业之后再出来工作。

    ：P 开个玩笑。
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