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《推荐系统实践》作者：项亮； 书籍全部章节配套源代码； 仅供学习分享，如有侵权立刻删除。(Author of Recommendation System Practice: Xiang Liang; All chapters of the book are accompanied by source code. For learning and sharing only. If there is any infringement, delete it immediately.)

this book is good for future networking.

说明：  notes on optical fibre communication

大型旋转机械的状态检测与故障诊断 介绍了旋转机械的故障诊断方法(State detection and fault diagnosis of large rotating machinery Introduce the fault diagnosis method of rotating machinery)

EXE电子书制作讲解了如何制作EXE格式的电子书，是一本比较好的参考资料。(EXE ebook creating explain how to produce EXE format e-books, is a good reference.)

一本关于黑客攻防技术的书籍，非常实用，主要是win环境下的技术，建议大家学习。(A hacker attack and defense techniques on the books, very practical, mostly win environment technology, suggest that you learn.)

动态断裂教程，很经典，对理解动态断裂帮助很大，可以用abaqus实现(Dynamic fracture tutorial, very classic, a great help to understand the dynamic fracture, can use the implementation of abaqus)

系统介绍用mongdb编写python的注意事项及实例，以及mongdb编写的网络框架！(System Introduction written mongdb python precautions and examples, as well as networking framework mongdb prepared!)

C++专有名词中英对照表,珍藏很久了,需要的拿去(C++ chinese english)

华为lite os 说明文档，帮助开发 IOT(this is huawei lite os for IOT doc)