Python datetime时间格式化去掉前导0，pythondatetime

Python datetime时间格式化去掉前导0，pythondatetime

Python时间格式化的时候，去掉前导0的：

dt = datetime.now() 
print dt.strftime('%-H')

#结果是： '4'

在format string的%与flag之间，添加一个“-”即可。

在Mac和Linux中试过可用，不确定是否可以移植。

使用格式化符号 '%f'.

The exact range of years for which strftime() works also varies across platforms. Regardless of platform, years before 1900 cannot be used.

Directive Meaning Notes
%a Locale’s abbreviated weekday name.
%A Locale’s full weekday name.
%b Locale’s abbreviated month name.
%B Locale’s full month name.
%c Locale’s appropriate date and time representation.
%d Day of the month as a decimal number [01,31].
%f Microsecond as a decimal number [0,999999], zero-padded on the left (1)
%H Hour (24-hour clock) as a decimal number [00,23].
%I Hour (12-hour clock) as a decimal number [01,12].
%j Day of the year as a decimal number [001,366].
%m Month as a decimal number [01,12].
%M Minute as a decimal number [00,59].
%p Locale’s equivalent of either AM or PM. (2)
%S Second as a decimal number [00,61]. (3)
%U Week number of the year (Sunday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Sunday are considered to be in week 0. (4)
%w Weekday as a decimal number [0(Sunday),6].
%W Week number of the year (Monday as the first day of the week) as a decimal number [00,53]. All days in a new year preceding the first Monday are considered to be in week 0. (4)
%x Locale’s appropriate date representation.
%X Locale’s appropriate time representation.
%y Year without century as a decimal number [00,99].
%Y Year with century as a decimal number.
%z UTC of......余下全文>>
 

import datetime
now_time = datetime.datetime.now()
now_time.strftime("%Y%m%d%H%M%S")