zzzmmy2003的博客

<第一篇博，写点什么 Fisher–Yates shuffle> 作为编程新手，又非本专业所学，在csdn上写博客似乎不自量力。然而记录本身也是学习的一部分，而这记录非此处不能写，那就开始吧。看到洗牌算法似乎十分有趣，试着用python练习一下

一句话生成字母表（后面还有两句的）

To update the filename according to its created time or modified time, a function is a good way.def getMdate(file): '''return: modified time of a file''' import time # os.stat return properti

Saving loop 保存与循环The loop ends only when successively savedwhile unsaved: try: wb.save(fn) unsaved = False except PermissionError: print(fn, 'in use, close and press ente

Windows 10 安装机器学习框架过程，也适合win 7

# Anonymous Fuction Lambda - Lambda is an anonymous function, which saves our time in process of defining one. - Arguments and ouputs are seperated by a colon - The latter can be simply a func

# 按位操作符与背包问题的遍历今天brute force 作业的案例和问题都十分有趣，而遍历的过程更能加深对按位操作符作用的理解。

Jupyter notebook, formerly known as the IPython notebook, is a flexible tool that helps you create readable analyses, as you