将日期时间格式化为以毫秒为单位的字符串
问题描述：
我想要一个带有毫秒的日期的 datetime 字符串.这段代码对我来说很典型，我很想学习如何缩短它.
I want to have a datetime string from the date with milliseconds. This code is typical for me and I'm eager to learn how to shorten it.
from datetime import datetime
timeformatted= str(datetime.utcnow())
semiformatted= timeformatted.replace("-","")
almostformatted= semiformatted.replace(":","")
formatted=almostformatted.replace(".","")
withspacegoaway=formatted.replace(" ","")
formattedstripped=withspacegoaway.strip()
print formattedstripped
答
要获取以毫秒为单位的日期字符串(秒后三位小数)，请使用:
To get a date string with milliseconds (3 decimal places behind seconds), use this:
from datetime import datetime
print datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3]
>>>> OUTPUT >>>>
2020-05-04 10:18:32.926
注意:对于 Python3，print 需要括号:
Note: For Python3, print requires parentheses:
print(datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S.%f')[:-3])