python datetime strftime格式变换

参考https://docs.python.org/2/library/datetime.html#strftime-and-strptime-behavior

%a Weekday as locale’s abbreviated name.

Sun, Mon, …, Sat (en_US);

So, Mo, …, Sa (de_DE)

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%A Weekday as locale’s full name.

Sunday, Monday, …, Saturday (en_US);

Sonntag, Montag, …, Samstag (de_DE)

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%w Weekday as a decimal number, where 0 is Sunday and 6 is Saturday. 0, 1, …, 6

%d Day of the month as a zero-padded decimal number. 01, 02, …, 31

%b Month as locale’s abbreviated name.

Jan, Feb, …, Dec (en_US);

Jan, Feb, …, Dez (de_DE)

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%B Month as locale’s full name.

January, February, …, December (en_US);

Januar, Februar, …, Dezember (de_DE)

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%m Month as a zero-padded decimal number. 01, 02, …, 12

%y Year without century as a zero-padded decimal number. 00, 01, …, 99

%Y Year with century as a decimal number. 1970, 1988, 2001, 2013

%H Hour (24-hour clock) as a zero-padded decimal number. 00, 01, …, 23

%I Hour (12-hour clock) as a zero-padded decimal number. 01, 02, …, 12

%p Locale’s equivalent of either AM or PM.

AM, PM (en_US);

am, pm (de_DE)

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%M Minute as a zero-padded decimal number. 00, 01, …, 59

%S Second as a zero-padded decimal number. 00, 01, …, 59 (3)

%f Microsecond as a decimal number, zero-padded on the left. 000000, 000001, …, 999999 (4)

%z UTC offset in the form +HHMM or -HHMM (empty string if the the object is naive). (empty), +0000, -0400, +1030 (5)

%Z Time zone name (empty string if the object is naive). (empty), UTC, EST, CST

%j Day of the year as a zero-padded decimal number. 001, 002, …, 366

%U Week number of the year (Sunday as the first day of the week) as a zero padded decimal number. All days in a new year preceding the first Sunday are considered to be in week 0. 00, 01, …, 53 (6)

%W Week number of the year (Monday as the first day of the week) as a decimal number. All days in a new year preceding the first Monday are considered to be in week 0. 00, 01, …, 53 (6)

%c Locale’s appropriate date and time representation.

Tue Aug 16 21:30:00 1988 (en_US);

Di 16 Aug 21:30:00 1988 (de_DE)

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%x Locale’s appropriate date representation.

08/16/88 (None);

08/16/1988 (en_US);

16.08.1988 (de_DE)

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%X Locale’s appropriate time representation.

21:30:00 (en_US);

21:30:00 (de_DE)

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%% A literal ‘%’ character. %