42 lines
1.8 KiB
Markdown
42 lines
1.8 KiB
Markdown
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# Python 中的基本日期和时间类型
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> 原文：<https://www.pythonforbeginners.com/basics/python-strftime-and-strptime>
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## 日期和时间
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date、datetime 和 time 对象都支持 strftime(format)方法，以便在显式格式字符串的控制下创建表示时间的字符串。
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以下是格式代码及其指令和含义的列表。
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```py
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%a Locale’s abbreviated weekday name.
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%A Locale’s full weekday name.
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%b Locale’s abbreviated month name.
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%B Locale’s full month name.
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%c Locale’s appropriate date and time representation.
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%d Day of the month as a decimal number [01,31].
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%f Microsecond as a decimal number [0,999999], zero-padded on the left
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%H Hour (24-hour clock) as a decimal number [00,23].
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%I Hour (12-hour clock) as a decimal number [01,12].
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%j Day of the year as a decimal number [001,366].
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%m Month as a decimal number [01,12].
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%M Minute as a decimal number [00,59].
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%p Locale’s equivalent of either AM or PM.
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%S Second as a decimal number [00,61].
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%U Week number of the year (Sunday as the first day of the week)
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%w Weekday as a decimal number [0(Sunday),6].
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%W Week number of the year (Monday as the first day of the week)
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%x Locale’s appropriate date representation.
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%X Locale’s appropriate time representation.
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%y Year without century as a decimal number [00,99].
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%Y Year with century as a decimal number.
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%z UTC offset in the form +HHMM or -HHMM.
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%Z Time zone name (empty string if the object is naive).
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%% A literal '%' character.
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```
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## strftime() vs strptime()
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strptime()–字符串“解析”时间–用于将字符串转换为日期/时间对象。使用它将日期字符串解析为日期/时间对象。
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strftime()–字符串“格式”时间–用于格式化日期对象。当您想要格式化日期时，请使用此选项。
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