timit库-统计代码运行时间

开始在Python中使用timeit库！

demo:

import timeit

TIMES = 10000

SETUP = """
symbols = '$¢£¥€¤'
def non_ascii(c):
    return c > 127
"""

def clock(label, cmd):
    res = timeit.repeat(cmd, setup=SETUP, number=TIMES)
    print(label, *(f'{x:.3f}' for x in res))

clock('listcomp        :', '[ord(s) for s in symbols if ord(s) > 127]')
clock('listcomp + func :', '[ord(s) for s in symbols if non_ascii(ord(s))]')
clock('filter + lambda :', 'list(filter(lambda c: c > 127, map(ord, symbols)))')
clock('filter + func   :', 'list(filter(non_ascii, map(ord, symbols)))')

代码007普通

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