Ruby-on-rails 如何从 Rails 时间类中获取 2 位数的小时和分钟
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/11315204/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to get 2 digit hour and minutes from Rails time class
提问by Abid
I am looking at
我在看
http://corelib.rubyonrails.org/classes/Time.html#M000245
http://corelib.rubyonrails.org/classes/Time.html#M000245
how can I get two digit hour and minutes from a time object
如何从时间对象中获得两位数的小时和分钟
Lets say I do
让我说我做
t = Time.now
t.hour // this returns 7 I want to get 07 instead of just 7
same for
同样的
t.min // // this returns 3 I want to get 03 instead of just 3
Thanks
谢谢
回答by BaronVonBraun
It might be worth looking into Time#strftimeif you're wanting to put your times together into a readable string or something like that.
如果你想把你的时间放在一个可读的字符串或类似的东西中，可能值得研究Time#strftime。
For example,
例如，
t = Time.now
t.strftime('%H')
#=> returns a 0-padded string of the hour, like "07"
t.strftime('%M')
#=> returns a 0-padded string of the minute, like "03"
t.strftime('%H:%M')
#=> "07:03"
回答by raina77ow
How about using String.format(%) operator? Like this:
如何使用String.format(%) 运算符？像这样：
x = '%02d' % t.hour
puts x # prints 07 if t.hour equals 7
回答by Alberto Camargo
You can try this!
你可以试试这个！
Time.now.to_formatted_s(:time)
回答by Nathan Willson
It's worth mentioning that you might want the hours for a specific time zone.
值得一提的是，您可能需要特定时区的小时数。
If the time zone is already set (either globally or you're in inside a block):
如果时区已经设置（全局或您在块内）：
Time.current.to_formatted_s(:time)
Time.current.to_formatted_s(:time)
To set the timezone inline:
内联设置时区：
Time.current.in_time_zone(Location.first.time_zone).to_formatted_s(:time)
Time.current.in_time_zone(Location.first.time_zone).to_formatted_s(:time)
回答by Quv
For what it's worth, to_formatted_sis actually an alias of to_s.
对于它的价值，to_formatted_s实际上是to_s.
Time.now.to_s(:time)
