我正在尝试将毫秒格式化为保留毫秒部分的格式化字符串。这是我的代码:
import time
time.strftime('%Y-%m-%d %H:%M:%S:%f', time.gmtime(1515694048121/1000.0))
1515694048121 是以毫秒为单位的时间。它返回我:
2018-01-11 18:07:28:f
正如我们所见，没有返回时间的毫秒部分。
包含毫秒时间部分的正确格式是什么？ '%Y-%m-%d %H:%M:%S:%f' 不正确吗？
最佳答案
time.strftime(...) 中提到的 no 指令这将返回你毫秒。不确定您从哪里获得使用 %f 的引用。事实上time.gmtime(...)精度仅达到几秒。
作为 hack，为了实现这一点，您可以通过将毫秒值保留为来显式格式化字符串:
>>> import time
>>> time_in_ms = 1515694048121
>>> time.strftime('%Y-%m-%d %H:%M:%S:{}'.format(time_in_ms%1000), time.gmtime(time_in_ms/1000.0))
'2018-01-11 18:07:28:121'
这是有效指令的列表:
+-----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------+
| 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]. | |
| %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. | (1) |
| %S | Second as a decimal number [00,61]. | (2) |
| %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. | (3) |
| %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. | (3) |
| %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 | Time zone offset indicating a positive or negative time difference from UTC/GMT of the form +HHMM or -HHMM, where H represents decimal hour digits and M represents decimal minute digits [-23:59, +23:59]. | |
| %Z | Time zone name (no characters if no time zone exists). | |
| %% | | |
+-----------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------+
关于Python 使用 `time.strftime` 在格式化字符串中显示毫秒，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/48215948/