%a - The abbreviated weekday name (``Sun'')%A - The full weekday name (``Sunday'')%b - The abbreviated month name (``Jan'')%B - The full month name (``January'')%c - The preferred local date and time representation%d - Day of the month (01..31)%H - Hour of the day, 24-hour clock (00..23)%I - Hour of the day, 12-hour clock (01..12)%j - Day of the year (001..366)%m - Month of the year (01..12)%M - Minute of the hour (00..59)%p - Meridian indicator (``AM'' or ``PM'')%S - Second of the minute (00..60)%U - Week number of the current year,starting with the first Sunday as the firstday of the first week (00..53)%W - Week number of the current year,starting with the first Monday as the firstday of the first week (00..53)%w - Day of the week (Sunday is 0, 0..6)%x - Preferred representation for the date alone, no time%X - Preferred representation for the time alone, no date%y - Year without a century (00..99)%Y - Year with century%Z - Time zone name%% - Literal ``%'' character
Ruby代码 t = Time.now t.strftime("Printed on %m/%d/%Y") #=> "Printed on 04/09/2003" t.strftime("at %I:%M%p") #=> "at 09:46AM" <%=h @article.created_at.strftime("%Y-%m-%d-%H:%M") %>转载于:https://www.cnblogs.com/lixiablog/archive/2011/11/28/2266251.html
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