计算阶层 普通方法: -使用循环 #!/usr/bin/python def factorial(n): sum = 1 for i in range(1,n+1): sum *= i return sum print factorial(5) 计算阶层 python 7.py 120 #!/usr/bin/python def factorial(n): sum = 0 for i in range(1…
Python之文件处理-递归删除特定文件 #!/usr/bin/env python # -*- coding:utf-8 -*- import os def delete_particular_file(top): for root, dirs, files in os.walk(top, topdown=False): for file_name in files: if file_name.split('.')[-1] == 'ipynb': delete_file_name = os.p…
对于python装饰器结合递归的进一步理解 代码如下: import functools def memoize(fn): print('start memoize') known = dict() @functools.wraps(fn) def memoizer(*args): if args not in known: print('memorize %s'%args) # known[args] = fn(*args) for k in known.keys(): print('%s :…
