rails 时间转换

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Rails SUN C C++C#

   1. ------------------------------------------------------- Time#strftime
   2.                 time.strftime( string ) => string
   3. ---------------------------------------------------------------------
   4.     Formats _time_ according to the directives in the given format
   5.     string. Any text not listed as a directive will be passed through
   6.     to the output string.
   7.
   8.     Format meaning:
   9.
10.       %a - The abbreviated weekday name ("Sun")
11.       %A - The full weekday name ("Sunday")
12.       %b - The abbreviated month name ("Jan")
13.       %B - The full month name ("January")
14.       %c - The preferred local data and time representation
15.       %d - Day of the month (01..31)
16.       %H - Hour of the day, 24-hour clock (00..23)
17.       %I - Hour of the day, 12-hour clock (01..12)
18.       %j - Day of the year (001..366)
19.       %m - Month of the year (01..12)
20.       %M - Minute of the hour (00..59)
21.       %p - Meridian indicator ("AM" or "PM")
22.       %S - Second of the minute (00..60)
23.       %U - Week number of the current year, starting with the first Sunday as the first
24.               day of the first week (00..53)
25.       %W - Week number of the current year, starting with the first Monday as the first
26.               day of the first week (00..53)
27.       %w - Day of the week (Sunday is 0, 0..6)
28.       %x - Preferred representation for the date alone, no time
29.       %X - Preferred representation for the time alone, no date
30.       %y - Year without a century (00..99)
31.       %Y - Year with century
32.       %Z - Time zone name
33.       %% - Literal "%" character
34.
35.        t = Time.now
36.        t.strftime("Printed on %m/%d/%Y") #=> "Printed on 04/09/2003"
37.        t.strftime("at %I:%M%p)            #=> "at 08:56AM"

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