实用python小工具——函数运行时间装饰器

装饰器定义如下：

import time
def CalculateTime(a_func):
    def wrapTheFunction():
        start = time.time()
        a_func()
        cost = time.time() - start
        print(f"Function \"{a_func.__name__}\" cost : {cost} second(s).")
    return wrapTheFunction

测试部分

@CalculateTime
def func():
    s = 0
    for i in range(10 ** 7):
        s += 1
    print(s)


if __name__ == '__main__':
    func()

结果

10000000
Function "func" cost : 1.7449958324432373 second(s).