之前介绍过格式化字符串
本篇专门介绍格式化字符串——时间
所有日期、时间的api都在datetime模块内。
1. datetime => string¶
now = datetime.datetime.now()
now.strftime('%Y-%m-%d %H:%M:%S')
输出2012-03-05 16:26:23.870105
strftime是datetime类的实例方法。
2. string => datetime¶
t_str = '2012-03-05 16:26:23'
d = datetime.datetime.strptime(t_str, '%Y-%m-%d %H:%M:%S')
strptime是datetime类的静态方法。
有关时间的更多格式化字符串：¶
%a Abbreviated weekday name
%A Full weekday name
%b Abbreviated month name
%B Full month name
%c Date and time representation appropriate for locale
%d Day of month as decimal number (01 - 31)
%H Hour in 24-hour format (00 - 23)
%I Hour in 12-hour format (01 - 12)
%j Day of year as decimal number (001 - 366)
%m Month as decimal number (01 - 12)
%M Minute as decimal number (00 - 59)
%p Current locale's A.M./P.M. indicator for 12-hour clock
%S Second as decimal number (00 - 59)
%U Week of year as decimal number, with Sunday as first day of week (00 - 51)
%w Weekday as decimal number (0 - 6; Sunday is 0)
%W Week of year as decimal number, with Monday as first day of week (00 - 51)
%x Date representation for current locale
%X Time representation for current locale
%y Year without century, as decimal number (00 - 99)
%Y Year with century, as decimal number
%z, %Z Time-zone name or abbreviation; no characters if time zone is unknown
%% Percent sign