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以后再也不用担心写爬虫ip被封，不用担心没钱买代理ip的烦恼了 在使用python写爬虫时候，你会遇到所要爬取的网站有反爬取技术比如用同一个IP反复爬取同一个网页，很可能会被封。如何有效的解决这个问题呢？我们可以使用代理ip，来设置代理ip池。 现在教大家一个可获取大量免费有效快速的代理ip方法，我们访问西刺免费代理i ...

In the hit CBS crime show Person of Interest, which debuted in 2011, the two heroes—one a former Central Intelligence Agency agent and the other a billionaire technology genius—work together using the ubiquitous surveillance system in New York City to try to stop violent crime. It’s referred to b ...

This books attempts to provide an extensive overview on Long-Term Evolution (LTE) networks. Understanding LTE and its Performance is purposely written to appeal to a broad audience and to be of value to anyone who is interested in 3GPP LTE or wireless broadband networks more generally. The aim of th ...

The wide deployment of wireless networks and mobile technologies, along with the significant increase in the number of mobile device users, have created a very strong demand on various wireless-based, mobile-based software application systems and enabling technologies. This not only provides many ne ...

The main aim of this book is to present a unified, systematic description of basic and advanced problems, methods and algorithms of the modern con- trol theory considered as a foundation for the design of computer control and management systems. The scope of the book differs considerably from the to ...

It all started rather innocuously. I walked into Dr GT Murthy’s office one fine day, andchanged my life. “Doc” was then the General Manager, Central R&D, of a very largeelectrical company headquartered in Bombay. In his new state-of-the-art electronics center,he had hand-picked some of India’s b ...

PADS Layout 的用户接口具有非常易于使用和有效的特点。PADS Layout 在满足专业用户需要的同时，还考虑到一些初次使用PCB 软件的用户需求。教程的这节将将覆盖以下内容：· 使用PADS Layout 进行交互操作· 工作空间的使用· 设置栅格(Grids)· 使用取景(Pan)和缩放(Zoom)· 面向目标(Object Oriented)的选取方式 ...

高清电子书-C++ Primer Plus, 第6版英文版 1438页Learning C++ is an adventure of discovery, particularly because the language accommodates several programming paradigms, including object-oriented programming, generic programming, and the traditional procedural programming.The fifth edition of this book ...

《HeadFirstJava》是一本完整地面向对象(object-oriented，OO)程序设计和Java的学习指导用书，根据学习理论所设计，你可以从程序语言的基础开始，到线程、网络与分布式程序等项目。重要的是，你可以学会如何像一个面向对象开发者一样去思考，而且不只是读死书。　　在这里，你可以会玩游戏、拼图、解谜题以及以意想不到的方 ...

RFID（Radio Frequency Identification）中间件的设计与系统的多个层相关，如RFID电子标签的数据采集、标签数据管理、RFID系统安全等。对于不同层，不同的设计和实现被具体应用所采纳。然而，以这种方法设计出来的中间件就会缺乏一致性和灵活性，设计者不能够以一个统一的框架设计RFID中间件。面向服务的RFID中间件架构SOA ...