python中有两个模块可以完成时间操作：time和datetime(相比较datetime更强大)

以下分别是两个模块的具体信息：

>>> dir(time)

[‘_STRUCT_TM_ITEMS‘, ‘__doc__‘, ‘__loader__‘, ‘__name__‘, ‘__package__‘, ‘__spec__‘, ‘altzone‘, ‘asctime‘, ‘clock‘, ‘ctime‘, ‘daylight‘, ‘get_clock_info‘, ‘gmtime‘,

‘localtime‘, ‘mktime‘, ‘monotonic‘, ‘monotonic_ns‘, ‘perf_counter‘, ‘perf_counter_ns‘, ‘process_time‘, ‘process_time_ns‘, ‘sleep‘, ‘strftime‘, ‘strptime‘,

‘struct_time‘, ‘time‘, ‘time_ns‘, ‘timezone‘, ‘tzname‘, ‘tzset‘]

>>> dir(datetime.datetime)

[‘__add__‘, ‘__class__‘, ‘__delattr__‘, ‘__dir__‘, ‘__doc__‘, ‘__eq__‘, ‘__format__‘, ‘__ge__‘, ‘__getattribute__‘, ‘__gt__‘, ‘__hash__‘, ‘__init__‘,

‘__init_subclass__‘, ‘__le__‘, ‘__lt__‘, ‘__ne__‘, ‘__new__‘, ‘__radd__‘, ‘__reduce__‘, ‘__reduce_ex__‘, ‘__repr__‘, ‘__rsub__‘, ‘__setattr__‘, ‘__sizeof__‘,

‘__str__‘, ‘__sub__‘, ‘__subclasshook__‘, ‘astimezone‘, ‘combine‘, ‘ctime‘, ‘date‘, ‘day‘, ‘dst‘, ‘fold‘, ‘fromisoformat‘, ‘fromordinal‘, ‘fromtimestamp‘, ‘hour‘,

‘isocalendar‘, ‘isoformat‘, ‘isoweekday‘, ‘max‘, ‘microsecond‘, ‘min‘, ‘minute‘, ‘month‘, ‘now‘, ‘replace‘, ‘resolution‘, ‘second‘, ‘strftime‘, ‘strptime‘, ‘time‘,

‘timestamp‘, ‘timetuple‘, ‘timetz‘, ‘today‘, ‘toordinal‘, ‘tzinfo‘, ‘tzname‘, ‘utcfromtimestamp‘, ‘utcnow‘, ‘utcoffset‘, ‘utctimetuple‘, ‘weekday‘, ‘year‘]

如果要获取微秒级别的时间差，可以利用以下代码

import datetime

begin_time = datetime.datetime.now()

end_time = datetime.datetime.now()

d_time = end_time - begin_time

再看下 d_time 的属性和方法

>>> dir(k)

[‘__abs__‘, ‘__add__‘, ‘__class__‘, ‘__delattr__‘, ‘__div__‘, ‘__doc__‘, ‘__eq__‘, ‘__floordiv__‘, ‘__format__‘, ‘__ge__‘,

‘__getattribute__‘, ‘__gt__‘, ‘__hash__‘, ‘__init__‘, ‘__le__‘, ‘__lt__‘, ‘__mul__‘, ‘__ne__‘, ‘__neg__‘, ‘__new__‘, ‘__nonzero__‘,

‘__pos__‘, ‘__radd__‘, ‘__rdiv__‘, ‘__reduce__‘, ‘__reduce_ex__‘, ‘__repr__‘, ‘__rfloordiv__‘, ‘__rmul__‘, ‘__rsub__‘, ‘__setattr__‘,

‘__sizeof__‘, ‘__str__‘, ‘__sub__‘, ‘__subclasshook__‘, ‘days‘, ‘max‘, ‘microseconds‘, ‘min‘, ‘resolution‘, ‘seconds‘, ‘total_seconds‘]

以上是 d_time 所有的属性和函数

利用以下代码可以获取以秒为单位的时间差，小数点后6位为微秒。

原文：https://www.cnblogs.com/sunshine-blog/p/12599403.html