本文核心资料均来自网络。但通常孤立的网络资料总有零零碎碎之感，看完还是不通不透，浅尝辄止，觉得自己的体系拼图里总是缺少几块。
本人有幸在IO这个话题下找到几篇能够互相补充的资料，结合了这些资料，融进自己的理解和实现，以成此文。
如有不当，恳请斧正。

结论

HE MESSAGE ARRIVES on my “clean machine,” a MacBook Air loaded only with a sophisticated encryption package. “Change in plans,” my contact says. “Be in the lobby of the Hotel __ by 1 pm. Bring a book and wait for ES to find you.” ¶ ES is Edward Snowden, the most wanted man in the world. For almost nine months, I have been trying to set up an interview with him—traveling to Berlin, Rio de Janeiro twice, and New York multiple times to talk with the handful of his confidants who can arrange a meeting. Among other things, I want to answer a burning question: What drove Snowden to leak hundreds of thousands of top-secret documents, revelations that have laid bare the vast scope of the government’s domestic surveillance programs? In May I received an email from his lawyer, ACLU attorney Ben Wizner, confirming that Snowden would meet me in Moscow and let me hang out and chat with him for what turned out to be three solid days over several weeks. It is the most time that any journalist has been allowed to spend with him since he arrived in Russia in June 2013. But the finer details of the rendezvous remain shrouded in mystery. I landed in Moscow without knowing precisely where or when Snowden and I would actually meet. Now, at last, the details are set.

内存是PC配件中结构最简单的，但在BIOS中却是最难调的，很多玩家超频都卡在内存上。
并且，内存的原理、结构与时序多年不会改变，无论将来内存技术如何进步，相信这篇文章的存在价值都不会打折扣。
本文亦希望能通过对DRAM基本原理以及时序的介绍，在内存设置以及XMP的制作上有所帮助。

Background

网上关于JPA的CascadeType讲解很多，但几乎都说的很模糊。
本文试图使用一个具体的例子来说明
CascadeType.PERSIST，CascadeType.MERGE，CascadeType.REFRESH，
CascadeType.REMOVE，CascadeType.ALL 具体区别。

总览

阅读全文

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1 如何一步一步按顺序搭建一个可用的git page
2 着重讲解操作过程遇到的坑，以及网上帖子的不足或未更新之处
3 对如何安装git、node等基础操作一笔带过，具体参考文中链接

一：常见模式与工具

学习Java技术体系，设计模式，流行的框架与组件是必不可少的：

• 常见的设计模式，编码必备