日期和时间模块-timeit程序运行时间统计模块

查看timeit模块有哪些函数或方法：

$ python
Python 3.6.8 (v3.6.8:3c6b436a57, Dec 24 2018, 02:10:22)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import timeit
>>> timeit.
timeit.default_number timeit.dummy_src_name timeit.main(          timeit.sys            timeit.timeit(
timeit.default_repeat timeit.gc             timeit.reindent(      timeit.template       timeit.Timer(
timeit.default_timer( timeit.itertools      timeit.repeat(        timeit.time
>>> exit()

参考：

https://docs.python.org/3.6/library/timeit.html