python编程时，经常和文件、目录打交道，这是就离不了os模块，本文档对os模块进行了简单介绍
Python programming, often dealing with files and directories, which can not be separated from the OS module, this document gives a brief introduction to the OS module. (2018-07-21, Python, 12KB, 下载0次)
一种非常优秀的传输芯片ax5043，它可以实现较远距离的通信，非常好！
A very good transmission chip ax5043, it can achieve more long-distance communication, very good! . (2016-01-09, Python, 1404KB, 下载17次)
usrp的全面介绍，接口介绍，工作原理，以及如何对它进行编程
description the usrp (2010-12-17, Python, 720KB, 下载151次)
python编程文档，很基础,希望对大家有用
programming document for python,it is basic! (2009-07-30, Python, 257KB, 下载1次)