Python-将月份名称转换为整数

问题描述：

如何使用Datetime将 Jan转换为整数？尝试strptime时，出现错误时间数据'Jan'与格式'％m'

How can I convert 'Jan' to an integer using Datetime? When I try strptime, I get an error time data 'Jan' does not match format '%m'

答

您有一个缩写的月份名称，因此请使用％b ：

You have an abbreviated month name, so use %b:

>>> from datetime import datetime
>>> datetime.strptime('Jan', '%b')
datetime.datetime(1900, 1, 1, 0, 0)
>>> datetime.strptime('Aug', '%b')
datetime.datetime(1900, 8, 1, 0, 0)
>>> datetime.strptime('Jan 15 2015', '%b %d %Y')
datetime.datetime(2015, 1, 15, 0, 0)

％m 是数字月份。

但是，如果您只想将一个缩写的月份映射到一个数字，则只需使用字典即可。您可以通过 calendar.month_abbr 构建一个：

However, if all you wanted to do was map an abbreviated month to a number, just use a dictionary. You can build one from calendar.month_abbr:

import calendar
abbr_to_num = {name: num for num, name in enumerate(calendar.month_abbr) if num}

演示：

>>> import calendar
>>> abbr_to_num = {name: num for num, name in enumerate(calendar.month_abbr) if num}
>>> abbr_to_num['Jan']
1
>>> abbr_to_num['Aug']
8

Python-将月份名称转换为整数

相关推荐