From 635127e4dff1ebd300804e5b00983e17d230b288 Mon Sep 17 00:00:00 2001
From: yihui <bangzewu@126.com>
Date: Thu, 14 Jul 2022 15:03:19 +0800
Subject: [PATCH] add new style for sidebar

---
 assets/scss/_variables_project.scss           |    33 +-
 content/zh-cn/community/_index.md             |     3 +-
 content/zh-cn/ebooks/_index.md                |     5 +
 ...71\347\224\265\345\255\220\344\271\246.md" |   731 +
 content/zh-cn/quick-forum/_index.html         |     2 +
 ...40\217\345\216\237\347\250\277.excalidraw" | 26727 ++++++++++++++++
 ...41\345\274\217\347\273\274\350\277\260.md" |   348 +-
 .../imgs/220708/bzt.jpg"                      |   Bin 0 -> 30689 bytes
 .../_index.md"                                |    10 +
 ...61\350\257\206\347\256\227\346\263\225.md" |    74 +
 .../ZAB\345\215\217\350\256\256.md"           |    59 +
 .../_index.md"                                |    10 +
 ...20\344\272\244\345\215\217\350\256\256.md" |    71 +
 layouts/{swagger => ebooks}/baseof.html       |     4 +-
 layouts/{swagger => ebooks}/list.html         |     0
 layouts/{swagger => ebooks}/single.html       |     0
 16 files changed, 27916 insertions(+), 161 deletions(-)
 create mode 100644 content/zh-cn/ebooks/_index.md
 create mode 100644 "content/zh-cn/ebooks/\345\205\215\350\264\271\347\224\265\345\255\220\344\271\246.md"
 create mode 100644 "content/zh-cn/\345\210\206\345\270\203\345\274\217/\345\210\206\345\270\203\345\274\217\344\270\223\346\240\217\345\216\237\347\250\277.excalidraw"
 create mode 100644 "content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/imgs/220708/bzt.jpg"
 create mode 100644 "content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\346\236\266\346\236\204\350\256\276\350\256\241/_index.md"
 create mode 100644 "content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/Raft\345\205\261\350\257\206\347\256\227\346\263\225.md"
 create mode 100644 "content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/ZAB\345\215\217\350\256\256.md"
 create mode 100644 "content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/_index.md"
 create mode 100644 "content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/\344\270\211\351\230\266\346\256\265\346\217\220\344\272\244\345\215\217\350\256\256.md"
 rename layouts/{swagger => ebooks}/baseof.html (86%)
 rename layouts/{swagger => ebooks}/list.html (100%)
 rename layouts/{swagger => ebooks}/single.html (100%)

diff --git a/assets/scss/_variables_project.scss b/assets/scss/_variables_project.scss
index a565203..4d4a5ec 100644
--- a/assets/scss/_variables_project.scss
+++ b/assets/scss/_variables_project.scss
@@ -31,4 +31,35 @@ Add styles or override variables from the theme here.
 .visit_cnt {
     color: #e96900;
     font-size: 1.4em;
-}
\ No newline at end of file
+}
+
+.td-sidebar-nav-active-item {
+	color: #ffa630;
+	span {
+		color: #ffa630;
+	}
+}
+
+.td-sidebar-link__section {
+	font-size: 1em;
+	font-weight: 700;
+	padding: 0.15rem 1.5rem 0.15rem 1.25rem;
+	border-left: 0.25rem solid transparent;
+
+	.td-sidebar-nav-active-item {
+		color: #ffa630;
+		span {
+			color: #ffa630;
+		}
+	}
+	span {
+		color: #2c3e50;
+	}
+}
+
+.td-sidebar-link__page {
+	font-size: 0.9em;
+	padding: 0.15rem 1.5rem 0.15rem 1.25rem;
+	border-left: 0.25rem solid transparent;
+}
+
diff --git a/content/zh-cn/community/_index.md b/content/zh-cn/community/_index.md
index bf6db27..9d796ec 100644
--- a/content/zh-cn/community/_index.md
+++ b/content/zh-cn/community/_index.md
@@ -1,9 +1,8 @@
 ---
-title: 交流
+title: 免费电子书
 # menu:
 #   main:
 #     weight: 40
 ---
 
 <!--add blocks of content here to add more sections to the community page -->
-
diff --git a/content/zh-cn/ebooks/_index.md b/content/zh-cn/ebooks/_index.md
new file mode 100644
index 0000000..b0fea2d
--- /dev/null
+++ b/content/zh-cn/ebooks/_index.md
@@ -0,0 +1,5 @@
+---
+title: EBooks
+---
+
+读书 & 随笔
\ No newline at end of file
diff --git "a/content/zh-cn/ebooks/\345\205\215\350\264\271\347\224\265\345\255\220\344\271\246.md" "b/content/zh-cn/ebooks/\345\205\215\350\264\271\347\224\265\345\255\220\344\271\246.md"
new file mode 100644
index 0000000..ac10fee
--- /dev/null
+++ "b/content/zh-cn/ebooks/\345\205\215\350\264\271\347\224\265\345\255\220\344\271\246.md"
@@ -0,0 +1,731 @@
+---
+title: 免费技术书籍大全
+linkTitle: 电子书
+menu:
+  main:
+    weight: 40
+tags: 
+  - EBooks
+categories: 
+  - EBooks
+date: 2022-07-13 12:26:49
+weight: 1
+---
+
+## 语言无关
+
+### 版本控制
+
+* [沉浸式学 Git](https://web.archive.org/web/20191004044726/http://igit.linuxtoy.org:80/index.html)
+* [猴子都能懂的GIT入门](http://backlogtool.com/git-guide/cn/)
+* [学习 Git 分支](https://learngitbranching.js.org)
+* [Git - 简易指南](http://rogerdudler.github.io/git-guide/index.zh.html)
+* [Git 参考手册](http://gitref.justjavac.com)
+* [Git-Cheat-Sheet](https://github.com/flyhigher139/Git-Cheat-Sheet) - flyhigher139
+* [Git Community Book 中文版](http://gitbook.liuhui998.com)
+* [git-flow 备忘清单](http://danielkummer.github.io/git-flow-cheatsheet/index.zh_CN.html)
+* [Git magic](http://www-cs-students.stanford.edu/~blynn/gitmagic/intl/zh_cn/)
+* [Git Magic](http://www-cs-students.stanford.edu/~blynn/gitmagic/intl/zh_cn/)
+* [Git教程](http://www.liaoxuefeng.com/wiki/0013739516305929606dd18361248578c67b8067c8c017b000) - 廖雪峰
+* [Github帮助文档](https://github.com/waylau/github-help)
+* [GitHub秘籍](https://snowdream86.gitbooks.io/github-cheat-sheet/content/zh/)
+* [Got GitHub](https://github.com/gotgit/gotgithub)
+* [GotGitHub](http://www.worldhello.net/gotgithub/index.html)
+* [HgInit (中文版)](https://zh-hginit.readthedocs.io/en/latest/)
+* [Mercurial 使用教程](https://www.mercurial-scm.org/wiki/ChineseTutorial)
+* [Pro Git](https://git-scm.com/book/zh/v2)
+* [Pro Git 第二版 中文版](https://bingohuang.gitbooks.io/progit2/content) - Bingo Huang
+* [svn 手册](http://svnbook.red-bean.com/nightly/zh/index.html)
+
+
+### 编程艺术
+
+* [编程入门指南](http://www.kancloud.cn/kancloud/intro-to-prog/52592)
+* [程序员编程艺术](https://github.com/julycoding/The-Art-Of-Programming-by-July)
+* [每个程序员都应该了解的内存知识 (第一部分)](http://www.oschina.net/translate/what-every-programmer-should-know-about-memory-part1)
+
+
+### 编辑器
+
+* [笨方法学Vimscript 中译本](http://learnvimscriptthehardway.onefloweroneworld.com)
+* [所需即所获：像 IDE 一样使用 vim](https://github.com/yangyangwithgnu/use_vim_as_ide)
+* [exvim--vim 改良成IDE项目](http://exvim.github.io/docs-zh/intro/)
+* [Vim中文文档](https://github.com/vimcn/vimcdoc)
+
+
+### 编译原理
+
+* [《计算机程序的结构和解释》公开课 翻译项目](https://github.com/DeathKing/Learning-SICP)
+
+
+### 操作系统
+
+* [开源世界旅行手册](http://i.linuxtoy.org/docs/guide/index.html)
+* [理解Linux进程](https://github.com/tobegit3hub/understand_linux_process)
+* [命令行的艺术](https://github.com/jlevy/the-art-of-command-line/blob/master/README-zh.md)
+* [鸟哥的 Linux 私房菜 服务器架设篇](http://cn.linux.vbird.org/linux_server/)
+* [鸟哥的 Linux 私房菜 基础学习篇](http://cn.linux.vbird.org/linux_basic/linux_basic.php)
+* [嵌入式 Linux 知识库 (eLinux.org 中文版)](https://tinylab.gitbooks.io/elinux/content/zh/)
+* [Docker — 从入门到实践](https://github.com/yeasy/docker_practice)
+* [Docker入门实战](http://yuedu.baidu.com/ebook/d817967416fc700abb68fca1)
+* [Docker中文指南](https://github.com/widuu/chinese_docker)
+* [FreeBSD 使用手册](http://www.freebsd.org/doc/zh_CN.UTF-8/books/handbook/)
+* [Linux 构建指南](http://works.jinbuguo.com/lfs/lfs62/index.html)
+* [Linux 系统高级编程](http://sourceforge.net/projects/elpi/)
+* [Linux Documentation (中文版)](https://tinylab.gitbooks.io/linux-doc/content/zh-cn/)
+* [Linux Guide for Complete Beginners](http://happypeter.github.io/LGCB/book/)
+* [Linux工具快速教程](https://github.com/me115/linuxtools_rst)
+* [Mac 开发配置手册](https://aaaaaashu.gitbooks.io/mac-dev-setup/content/)
+* [Operating Systems: Three Easy Pieces](http://pages.cs.wisc.edu/~remzi/OSTEP/)
+* [The Linux Command Line](http://billie66.github.io/TLCL/index.html)
+* [Ubuntu 参考手册](http://wiki.ubuntu.org.cn/UbuntuManual)
+* [uCore Lab: Operating System Course in Tsinghua University](https://www.gitbook.com/book/objectkuan/ucore-docs/details)
+* [UNIX TOOLBOX](http://cb.vu/unixtoolbox_zh_CN.xhtml)
+
+
+### 程序员杂谈
+
+* [程序员的自我修养](http://www.kancloud.cn/kancloud/a-programmer-prepares)
+
+
+### 大数据
+
+* [面向程序员的数据挖掘指南](http://dataminingguide.books.yourtion.com)
+* [数据挖掘中经典的算法实现和详细的注释](https://github.com/linyiqun/DataMiningAlgorithm)
+* [Spark 编程指南简体中文版](https://aiyanbo.gitbooks.io/spark-programming-guide-zh-cn/content/)
+
+
+### 分布式系统
+
+* [走向分布式](http://dcaoyuan.github.io/papers/pdfs/Scalability.pdf) (PDF)
+
+
+### 管理和监控
+
+* [ElasticSearch 权威指南](https://www.gitbook.com/book/fuxiaopang/learnelasticsearch/details)
+* [Elasticsearch 权威指南（中文版）](http://es.xiaoleilu.com)
+* [ELKstack 中文指南](http://kibana.logstash.es)
+* [Logstash 最佳实践](https://github.com/chenryn/logstash-best-practice-cn)
+* [Mastering Elasticsearch(中文版)](http://udn.yyuap.com/doc/mastering-elasticsearch/)
+* [Puppet 2.7 Cookbook 中文版](https://www.gitbook.com/book/wizardforcel/puppet-27-cookbook/details)
+
+
+### 函数式概念
+
+* [傻瓜函数编程](https://github.com/justinyhuang/Functional-Programming-For-The-Rest-of-Us-Cn)
+
+
+### 计算机图形学
+
+* [LearnOpenGL CN](https://learnopengl-cn.github.io)
+* [OpenGL 教程](https://github.com/zilongshanren/opengl-tutorials)
+
+
+### 其它
+
+* [深入理解并行编程](http://ifeve.com/perfbook/)
+* [SAN 管理入门系列](https://community.emc.com/docs/DOC-16067)
+* [Sketch 中文手册](http://sketchcn.com/sketch-chinese-user-manual.html#introduce)
+
+
+### 软件开发方法
+
+* [傻瓜函数编程](https://github.com/justinyhuang/Functional-Programming-For-The-Rest-of-Us-Cn) (《Functional Programming For The Rest of Us》中文版)
+* [硝烟中的 Scrum 和 XP](http://www.infoq.com/cn/minibooks/scrum-xp-from-the-trenches)
+
+
+### 设计模式
+
+* [深入设计模式](https://refactoringguru.cn/design-patterns)
+* [史上最全设计模式导学目录](http://blog.csdn.net/lovelion/article/details/17517213)
+* [图说设计模式](https://github.com/me115/design_patterns)
+
+
+### 数据库
+
+<!-- Waiting to add in -->
+
+
+### 项目相关
+
+* [编码规范](https://github.com/ecomfe/spec)
+* [开源软件架构](http://www.ituring.com.cn/book/1143)
+* [让开发自动化系列专栏](https://wizardforcel.gitbooks.io/ibm-j-ap)
+* [追求代码质量](https://wizardforcel.gitbooks.io/ibm-j-cq)
+* [GNU make 指南](http://docs.huihoo.com/gnu/linux/gmake.html)
+* [Gradle 2 用户指南](https://github.com/waylau/Gradle-2-User-Guide)
+* [Gradle 中文使用文档](http://yuedu.baidu.com/ebook/f23af265998fcc22bcd10da2)
+* [Joel谈软件](https://web.archive.org/web/20170616013024/http://local.joelonsoftware.com/wiki/Chinese_(Simplified))
+* [selenium 中文文档](https://github.com/fool2fish/selenium-doc)
+
+
+### 在线教育
+
+* [51CTO学院](http://edu.51cto.com)
+* [黑马程序员](http://yun.itheima.com)
+* [汇智网](http://www.hubwiz.com)
+* [极客学院](http://www.jikexueyuan.com)
+* [计蒜客](http://www.jisuanke.com)
+* [慕课网](http://www.imooc.com/course/list)
+* [Codecademy](https://www.codecademy.com/?locale_code=zh)
+* [CodeSchool](https://www.codeschool.com)
+* [Coursera](https://www.coursera.org/courses?orderby=upcoming&lngs=zh)
+* [Learn X in Y minutes](https://learnxinyminutes.com)
+* [shiyanlou](https://www.shiyanlou.com)
+* [TeamTreeHouse](https://teamtreehouse.com)
+* [Udacity](https://www.udacity.com)
+* [xuetangX](https://www.xuetangx.com)
+
+
+### 正则表达式
+
+* [正则表达式-菜鸟教程](http://www.runoob.com/regexp/regexp-tutorial.html)
+* [正则表达式30分钟入门教程](https://web.archive.org/web/20161119141236/http://deerchao.net:80/tutorials/regex/regex.htm)
+
+
+### 智能系统
+
+* [一步步搭建物联网系统](https://github.com/phodal/designiot)
+
+
+### IDE
+
+* [IntelliJ IDEA 简体中文专题教程](https://github.com/judasn/IntelliJ-IDEA-Tutorial)
+
+
+### Web
+
+* [3 Web Designs in 3 Weeks](https://www.gitbook.com/book/juntao/3-web-designs-in-3-weeks/details)
+* [关于浏览器和网络的 20 项须知](http://www.20thingsilearned.com/zh-CN/home)
+* [浏览器开发工具的秘密](http://jinlong.github.io/2013/08/29/devtoolsecrets/)
+* [前端代码规范 及 最佳实践](http://coderlmn.github.io/code-standards/)
+* [前端开发体系建设日记](https://github.com/fouber/blog/issues/2)
+* [前端资源分享（二）](https://github.com/hacke2/hacke2.github.io/issues/3)
+* [前端资源分享（一）](https://github.com/hacke2/hacke2.github.io/issues/1)
+* [一站式学习Wireshark](https://community.emc.com/thread/194901)
+* [移动前端开发收藏夹](https://github.com/hoosin/mobile-web-favorites)
+* [移动Web前端知识库](https://github.com/AlloyTeam/Mars)
+* [正则表达式30分钟入门教程](http://deerchao.net/tutorials/regex/regex.htm)
+* [Chrome 开发者工具中文手册](https://github.com/CN-Chrome-DevTools/CN-Chrome-DevTools)
+* [Chrome扩展及应用开发](http://www.ituring.com.cn/minibook/950)
+* [Chrome扩展开发文档](http://open.chrome.360.cn/extension_dev/overview.html)
+* [Growth: 全栈增长工程师指南](https://github.com/phodal/growth-ebook)
+* [Grunt中文文档](http://www.gruntjs.net)
+* [Gulp 入门指南](https://github.com/nimojs/gulp-book)
+* [gulp中文文档](http://www.gulpjs.com.cn/docs/)
+* [HTTP 接口设计指北](https://github.com/bolasblack/http-api-guide)
+* [HTTP/2.0 中文翻译](http://yuedu.baidu.com/ebook/478d1a62376baf1ffc4fad99?pn=1)
+* [http2讲解](https://www.gitbook.com/book/ye11ow/http2-explained/details)
+* [JSON风格指南](https://github.com/darcyliu/google-styleguide/blob/master/JSONStyleGuide.md)
+* [Wireshark用户手册](https://web.archive.org/web/20200415002730/http://man.lupaworld.com/content/network/wireshark/index.html)
+
+
+### WEB服务器
+
+* [Apache 中文手册](http://works.jinbuguo.com/apache/menu22/index.html)
+* [Nginx教程从入门到精通](http://www.ttlsa.com/nginx/nginx-stu-pdf/) - 运维生存时间 (PDF)
+* [Nginx开发从入门到精通](http://tengine.taobao.org/book/index.html) - 淘宝团队
+
+
+## 语言相关
+
+### Android
+
+* [Android Design(中文版)](http://www.apkbus.com/design/index.html)
+* [Android Note(开发过程中积累的知识点)](https://github.com/CharonChui/AndroidNote)
+* [Android6.0新特性详解](http://leanote.com/blog/post/561658f938f41126b2000298)
+* [Android开发技术前线(android-tech-frontier)](https://github.com/bboyfeiyu/android-tech-frontier)
+* [Google Android官方培训课程中文版](http://hukai.me/android-training-course-in-chinese/index.html)
+* Google Material Design 正體中文版 ([译本一](https://wcc723.gitbooks.io/google_design_translate/content/style-icons.html)，[译本二](https://github.com/1sters/material_design_zh))
+* [Material Design 中文版](http://wiki.jikexueyuan.com/project/material-design/)
+* [Point-of-Android](https://github.com/FX-Max/Point-of-Android)
+
+
+### Assembly
+
+* 逆向工程权威指南 《Reverse Engineering for Beginners》 - Dennis Yurichev, Antiy Labs, Archer
+  * [逆向工程权威指南 《Reverse Engineering for Beginners》 Vol.1](https://beginners.re/RE4B-CN-vol1.pdf) - Dennis Yurichev, Antiy Labs, Archer (PDF)
+  * [逆向工程权威指南 《Reverse Engineering for Beginners》 Vol.2](https://beginners.re/RE4B-CN-vol2.pdf) - Dennis Yurichev, Antiy Labs, Archer (PDF)
+* [C/C++面向WebAssembly编程](https://github.com/3dgen/cppwasm-book/tree/master/zh) - Ending, Chai Shushan (HTML, [:package: examples](https://github.com/3dgen/cppwasm-book/tree/master/examples))
+
+
+### AWK
+
+* [awk程序设计语言](https://github.com/wuzhouhui/awk)
+* [awk中文指南](http://awk.readthedocs.org/en/latest/index.html)
+
+
+### C
+
+* [新概念 C 语言教程](https://github.com/limingth/NCCL)
+* [Beej's Guide to Network Programming 簡體中文版](https://firebasestorage.googleapis.com/v0/b/gitbook-28427.appspot.com/o/assets%2F-ME5zR-03ZEHgp2kv7bW%2F-MF9EIY-s19_w19_Unae%2F-MF9F-HCs1nLOkY1mLVi%2FBeej-cn-20140429.zip?alt=media&token=de27f96b-2aed-4c97-8879-649638c7559f) - Brian "Beej Jorgensen" Hall, 廖亚伦译 (PDF)
+* [C 语言常见问题集](http://c-faq-chn.sourceforge.net/ccfaq/ccfaq.html)
+* [Linux C 编程一站式学习](http://docs.linuxtone.org/ebooks/C&CPP/c/)
+
+
+### <a id="csharp"></a>C\#
+
+* [精通C#(第6版)](http://book.douban.com/subject/24827879/)
+
+
+### <a id="cpp"></a>C++
+
+* [100个gcc小技巧](https://github.com/hellogcc/100-gcc-tips/blob/master/src/index.md)
+* [100个gdb小技巧](https://github.com/hellogcc/100-gdb-tips/blob/master/src/index.md)
+* [简单易懂的C魔法](http://www.nowamagic.net/librarys/books/contents/c)
+* [像计算机科学家一样思考（C++版)](http://www.ituring.com.cn/book/1203) (《How To Think Like a Computer Scientist: C++ Version》中文版)
+* [C 语言编程透视](https://tinylab.gitbooks.io/cbook/content/)
+* [C/C++ Primer](https://github.com/andycai/cprimer) - andycai
+* [C++ 并发编程指南](https://github.com/forhappy/Cplusplus-Concurrency-In-Practice)
+* [C++ FAQ LITE(中文版)](http://www.sunistudio.com/cppfaq/)
+* [C++ Primer 5th Answers](https://github.com/Mooophy/Cpp-Primer)
+* [C++ Template 进阶指南](https://github.com/wuye9036/CppTemplateTutorial)
+* [CGDB中文手册](https://github.com/leeyiw/cgdb-manual-in-chinese)
+* [Cmake 实践](https://web.archive.org/web/20170615174144/http://sewm.pku.edu.cn/src/paradise/reference/CMake%20Practice.pdf) (PDF)
+* [GNU make 指南](http://docs.huihoo.com/gnu/linux/gmake.html)
+* [Google C++ 风格指南](http://zh-google-styleguide.readthedocs.org/en/latest/google-cpp-styleguide/contents/)
+* [ZMQ 指南](https://github.com/anjuke/zguide-cn)
+
+
+### CoffeeScript
+
+* [CoffeeScript 编程风格指南](https://github.com/elrrrrrrr/coffeescript-style-guide/blob/master/README-ZH.md)
+* [CoffeeScript 编码风格指南](https://github.com/geekplux/coffeescript-style-guide)
+* [CoffeeScript 中文](http://coffee-script.org)
+
+
+### Dart
+
+* [Dart 语言导览](http://dart.lidian.info/wiki/Language_Tour)
+
+
+### Elasticsearch
+
+* [Elasticsearch 权威指南](https://github.com/looly/elasticsearch-definitive-guide-cn) （《Elasticsearch the definitive guide》中文版）
+* [Mastering Elasticsearch(中文版)](http://udn.yyuap.com/doc/mastering-elasticsearch/)
+
+
+### Elixir
+
+* [Elixir 编程语言教程](https://elixirschool.com/cn/) (Elixir School)
+* [Elixir Getting Started 中文翻译](https://github.com/Ljzn/ElixrGettingStartedChinese)
+* [Elixir元编程与DSL 中文翻译](https://github.com/Ljzn/MetaProgrammingInElixirChinese)
+* [Phoenix 框架中文文档](https://mydearxym.gitbooks.io/phoenix-doc-in-chinese/content/)
+
+
+### Erlang
+
+* [Erlang 并发编程](https://github.com/liancheng/cpie-cn) (《Concurrent Programming in Erlang (Part I)》中文版)
+
+
+### Fortran
+
+* [Fortran77和90/95编程入门](http://micro.ustc.edu.cn/Fortran/ZJDing/)
+
+
+### Golang
+
+* [深入解析 Go](https://tiancaiamao.gitbooks.io/go-internals/content/zh) - tiancaiamao
+* [神奇的 Go 语言](http://go.ctolib.com/docs/read/magical-go-c-index.html)
+* [学习Go语言](http://mikespook.com/learning-go/)
+* [Go 编程基础](https://github.com/Unknwon/go-fundamental-programming)
+* [Go 官方文档翻译](https://github.com/golang-china/golangdoc.translations)
+* [Go 简易教程](https://github.com/songleo/the-little-go-book_ZH_CN) - Song Song Li (《[The Little Go Book](https://github.com/karlseguin/the-little-go-book) - Karl Seguin》中文版)
+* [Go 命令教程](https://github.com/hyper-carrot/go_command_tutorial)
+* [Go 入门指南](https://github.com/Unknwon/the-way-to-go_ZH_CN) (《The Way to Go》中文版)
+* [Go 语法树入门](https://github.com/chai2010/go-ast-book)
+* [Go 语言标准库](https://github.com/polaris1119/The-Golang-Standard-Library-by-Example)
+* [Go 语言高级编程（Advanced Go Programming）](https://github.com/chai2010/advanced-go-programming-book)
+* [Go 语言设计与实现](https://draveness.me/golang) - draveness
+* [Go 语言实战笔记](https://github.com/rujews/go-in-action-notes)
+* [Go 指南](https://tour.go-zh.org/list) (《A Tour of Go》中文版)
+* [Go Web 编程](https://github.com/astaxie/build-web-application-with-golang)
+* [Go实战开发](https://github.com/astaxie/go-best-practice)
+* [Go语言博客实践](https://github.com/achun/Go-Blog-In-Action)
+* [Java程序员的Golang入门指南](http://blog.csdn.net/dc_726/article/details/46565241)
+* [Network programming with Go 中文翻译版本](https://github.com/astaxie/NPWG_zh)
+* [Revel 框架手册](http://gorevel.cn/docs/manual/index.html)
+* [The Little Go Book 繁體中文翻譯版](https://github.com/kevingo/the-little-go-book) - Karl Seguin, KevinGo, Jie Peng ([HTML](https://kevingo.gitbooks.io/the-little-go-book/))
+
+
+### Groovy
+
+* [Groovy 教程](https://www.w3cschool.cn/groovy) - W3Cschool
+
+
+### Haskell
+
+* [Haskell 趣学指南](https://learnyouahaskell.mno2.org)
+* [Real World Haskell 中文版](http://cnhaskell.com)
+
+
+### HTML / CSS
+
+* [前端代码规范](http://alloyteam.github.io/CodeGuide/) - 腾讯AlloyTeam团队
+* [通用 CSS 笔记、建议与指导](https://github.com/chadluo/CSS-Guidelines/blob/master/README.md)
+* [学习CSS布局](http://zh.learnlayout.com)
+* [Bootstrap 4 繁體中文手冊](https://bootstrap.hexschool.com) - 六角學院
+* [Bootstrap 5 繁體中文手冊](https://bootstrap5.hexschool.com) - 六角學院
+* [CSS3 Tutorial 《CSS3 教程》](https://github.com/waylau/css3-tutorial)
+* [CSS参考手册](http://css.doyoe.com)
+* [Emmet 文档](http://yanxyz.github.io/emmet-docs/)
+* [HTML5 教程](http://www.w3school.com.cn/html5/index.asp)
+* [HTML和CSS编码规范](http://codeguide.bootcss.com)
+* [Sass Guidelines 中文](http://sass-guidelin.es/zh/)
+
+
+### iOS
+
+* [网易斯坦福大学公开课：iOS 7应用开发字幕文件](https://github.com/jkyin/Subtitle)
+* [Apple Watch开发初探](http://nilsun.github.io/apple-watch/)
+* [Google Objective-C Style Guide 中文版](http://zh-google-styleguide.readthedocs.org/en/latest/google-objc-styleguide/)
+* [iOS7人机界面指南](http://isux.tencent.com/ios-human-interface-guidelines-ui-design-basics-ios7.html)
+* [iOS开发60分钟入门](https://github.com/qinjx/30min_guides/blob/master/ios.md)
+* [iPhone 6 屏幕揭秘](http://wileam.com/iphone-6-screen-cn/)
+
+
+### Java
+
+* [阿里巴巴 Java 开发手册](https://github.com/alibaba/p3c/blob/master/Java%E5%BC%80%E5%8F%91%E6%89%8B%E5%86%8C%EF%BC%88%E5%B5%A9%E5%B1%B1%E7%89%88%EF%BC%89.pdf) (PDF)
+* [用jersey构建REST服务](https://github.com/waylau/RestDemo)
+* [Activiti 5.x 用户指南](https://github.com/waylau/activiti-5.x-user-guide)
+* [Apache MINA 2 用户指南](https://github.com/waylau/apache-mina-2.x-user-guide)
+* [Apache Shiro 用户指南](https://github.com/waylau/apache-shiro-1.2.x-reference)
+* [Google Java编程风格指南](http://hawstein.com/2014/01/20/google-java-style/)
+* [H2 Database 教程](https://github.com/waylau/h2-database-doc)
+* [Java 编程思想](https://java.quanke.name) - quanke
+* [Java 编码规范](https://github.com/waylau/java-code-conventions)
+* [Java Servlet 3.1 规范](https://github.com/waylau/servlet-3.1-specification)
+* [Jersey 2.x 用户指南](https://github.com/waylau/Jersey-2.x-User-Guide)
+* [JSSE 参考指南](https://github.com/waylau/jsse-reference-guide)
+* [MyBatis中文文档](http://mybatis.github.io/mybatis-3/zh/index.html)
+* [Netty 4.x 用户指南](https://github.com/waylau/netty-4-user-guide)
+* [Netty 实战(精髓)](https://github.com/waylau/essential-netty-in-action)
+* [Nutz-book Nutz烹调向导](http://nutzbook.wendal.net)
+* [Nutz文档](https://nutzam.com/core/nutz_preface.html)
+* [REST 实战](https://github.com/waylau/rest-in-action)
+* [Spring Boot参考指南](https://github.com/qibaoguang/Spring-Boot-Reference-Guide) (:construction: *翻译中*)
+* [Spring Framework 4.x参考文档](https://github.com/waylau/spring-framework-4-reference)
+
+
+### JavaScript
+
+* [命名函数表达式探秘](http://justjavac.com/named-function-expressions-demystified.html) - kangax、为之漫笔(翻译) (原始地址无法打开，所以此处地址为justjavac博客上的备份)
+* [你不知道的Javascript](https://github.com/getify/You-Dont-Know-JS/tree/1ed-zh-CN)
+* [深入理解JavaScript系列](http://www.cnblogs.com/TomXu/archive/2011/12/15/2288411.html)
+* [现代 JavaScript 教程](https://zh.javascript.info) - Ilya Kantor
+* [学用 JavaScript 设计模式](http://www.oschina.net/translate/learning-javascript-design-patterns) - 开源中国
+* [Airbnb JavaScript 规范](https://github.com/adamlu/javascript-style-guide)
+* [ECMAScript 6 入门](http://es6.ruanyifeng.com) - 阮一峰
+* [Google JavaScript 代码风格指南](http://bq69.com/blog/articles/script/868/google-javascript-style-guide.html)
+* [JavaScript 标准参考教程（alpha）](http://javascript.ruanyifeng.com)
+* [javascript 的 12 个怪癖](https://github.com/justjavac/12-javascript-quirks)
+* [JavaScript 秘密花园](http://bonsaiden.github.io/JavaScript-Garden/zh/)
+* [《JavaScript 模式》](https://github.com/jayli/javascript-patterns) (《JavaScript patterns》译本)
+* [Javascript 原理](https://web.archive.org/web/20170112164945/http://typeof.net/s/jsmech/)
+* [JavaScript Promise迷你书](http://liubin.github.io/promises-book/)
+* [Javascript编程指南](http://pij.robinqu.me) ([源码](https://github.com/RobinQu/Programing-In-Javascript))
+* [JavaScript核心概念及实践](http://icodeit.org/jsccp/) (PDF)
+
+
+#### AngularJS
+
+> :information_source: See also &#8230; [Angular](#angular)
+
+* [构建自己的AngularJS](https://github.com/xufei/Make-Your-Own-AngularJS/blob/master/01.md) - Xu Fei (HTML)
+* [在Windows环境下用Yeoman构建AngularJS项目](http://www.waylau.com/build-angularjs-app-with-yeoman-in-windows/) - Way Lau (HTML)
+* [AngularJS入门教程](https://github.com/zensh/AngularjsTutorial_cn) - Yan Qing, Hou Zhenyu, 速冻沙漠 (HTML) (:card_file_box: *archived*)
+* [AngularJS最佳实践和风格指南](https://github.com/mgechev/angularjs-style-guide/blob/master/README-zh-cn.md) - Minko Gechev, Xuefeng Zhu, Shintaro Kaneko et al. (HTML)
+
+
+#### Backbone.js
+
+  * [Backbone.js入门教程](http://www.the5fire.com/backbone-js-tutorials-pdf-download.html) (PDF)
+  * [Backbone.js入门教程第二版](https://github.com/the5fire/backbonejs-learning-note)
+  * [Backbone.js中文文档](http://www.css88.com/doc/backbone/)
+
+
+#### D3.js
+
+  * [楚狂人的D3教程](http://www.cnblogs.com/winleisure/tag/D3.js/)
+  * [官方API文档](https://github.com/mbostock/d3/wiki/API--%E4%B8%AD%E6%96%87%E6%89%8B%E5%86%8C)
+  * [张天旭的D3教程](http://blog.csdn.net/zhang__tianxu/article/category/1623437)
+  * [Learning D3.JS](http://d3.decembercafe.org) - 十二月咖啡馆
+
+
+#### Electron.js
+
+  * [Electron 中文文档](https://wizardforcel.gitbooks.io/electron-doc/content) - WizardForcel
+  * [Electron 中文文档](https://www.w3cschool.cn/electronmanual) - W3Cschool
+
+
+#### ExtJS
+
+  * [Ext4.1.0 中文文档](http://extjs-doc-cn.github.io/ext4api/)
+
+
+#### impress.js
+
+  * [impress.js的中文教程](https://github.com/kokdemo/impress.js-tutorial-in-Chinese)
+
+
+#### jQuery
+
+  * [简单易懂的JQuery魔法](http://www.nowamagic.net/librarys/books/contents/jquery)
+  * [How to write jQuery plugin](http://i5ting.github.io/How-to-write-jQuery-plugin/build/jquery.plugin.html)
+
+
+#### Node.js
+
+* [七天学会NodeJS](http://nqdeng.github.io/7-days-nodejs/) - 阿里团队
+* [使用 Express + MongoDB 搭建多人博客](https://github.com/nswbmw/N-blog)
+* [express.js 中文文档](http://expressjs.jser.us)
+* [Express框架](http://javascript.ruanyifeng.com/nodejs/express.html)
+* [JavaScript全栈工程师培训材料](http://nodejs.ctolib.com/docs/sfile/jstraining/engineering.html)
+* [koa 中文文档](https://github.com/guo-yu/koa-guide)
+* [Learn You The Node.js For Much Win! (中文版)](https://www.npmjs.com/package/learnyounode-zh-cn)
+* [Node debug 三法三例](http://i5ting.github.io/node-debug-tutorial/)
+* [Node.js 包教不包会](https://github.com/alsotang/node-lessons)
+* [Node.js Fullstack《從零到一的進撃》](https://github.com/jollen/nodejs-fullstack-lessons)
+* [Node入门](http://www.nodebeginner.org/index-zh-cn.html)
+* [Nodejs Wiki Book](https://github.com/nodejs-tw/nodejs-wiki-book) (繁体中文)
+* [nodejs中文文档](https://www.gitbook.com/book/0532/nodejs/details)
+* [The NodeJS 中文文档](https://www.gitbook.com/book/0532/nodejs/details) - 社区翻译
+
+
+#### React.js
+
+  * [Learn React & Webpack by building the Hacker News front page](https://github.com/theJian/build-a-hn-front-page)
+  * [React-Bits 中文文档](https://github.com/hateonion/react-bits-CN)
+  * [React Native 中文文档(含最新Android内容)](http://wiki.jikexueyuan.com/project/react-native/)
+  * [React webpack-cookbook](https://github.com/fakefish/react-webpack-cookbook)
+  * [React.js 入门教程](http://fraserxu.me/intro-to-react/)
+  * [React.js 中文文档](https://discountry.github.io/react/)
+
+
+#### Vue.js
+
+  * [Vue.js中文文档](https://cn.vuejs.org/v2/guide/)
+  * [Vue3.0学习教程与实战案例](https://vue3.chengpeiquan.com) - chengpeiquan
+
+
+#### Zepto.js
+
+  * [Zepto.js 中文文档](http://css88.com/doc/zeptojs_api)
+
+
+### LaTeX
+
+* [大家來學 LaTeX](https://github.com/49951331/graduate-project-102pj/blob/master/docs/latex123.pdf) (PDF)
+* [一份不太简短的 LaTeX2ε 介绍](http://ctan.org/pkg/lshort-zh-cn)
+* [LaTeX 笔记](http://www.dralpha.com/zh/tech/tech.htm)
+
+
+### LISP
+
+* [ANSI Common Lisp 中文翻译版](http://acl.readthedocs.org/en/latest/)
+* [Common Lisp 高级编程技术](http://www.ituring.com.cn/minibook/862) (《On Lisp》中文版)
+
+
+### Lua
+
+* [Lua 5.3 参考手册](http://www.w3cschool.cc/manual/lua53doc/contents.html)
+
+
+### Markdown
+
+* [献给写作者的 Markdown 新手指南](http://www.jianshu.com/p/q81RER)
+* [Markdown 語法說明](https://markdown.tw)
+
+
+### MySQL
+
+* [21分钟MySQL入门教程](http://www.cnblogs.com/mr-wid/archive/2013/05/09/3068229.html)
+* [MySQL索引背后的数据结构及算法原理](http://blog.codinglabs.org/articles/theory-of-mysql-index.html)
+
+
+### NoSQL
+
+* [带有详细注释的 Redis 2.6 代码](https://github.com/huangz1990/annotated_redis_source)
+* [带有详细注释的 Redis 3.0 代码](https://github.com/huangz1990/redis-3.0-annotated)
+* [Disque 使用教程](http://disque.huangz.me)
+* [Redis 命令参考](http://redisdoc.com)
+* [Redis 设计与实现](http://redisbook.com)
+* [The Little MongoDB Book](https://github.com/justinyhuang/the-little-mongodb-book-cn/blob/master/mongodb.md)
+* [The Little Redis Book](https://github.com/JasonLai256/the-little-redis-book/blob/master/cn/redis.md)
+
+
+### Perl
+
+* [Master Perl Today](https://github.com/fayland/chinese-perl-book)
+* [Perl 5 教程](https://web.archive.org/web/20150326073235/http://net.pku.edu.cn/~yhf/tutorial/perl/perl.html)
+* [Perl 教程](http://www.yiibai.com/perl)
+
+
+### PHP
+
+* [深入理解 PHP 内核](http://www.php-internals.com/book/)
+* [CodeIgniter 使用手冊](https://codeigniter.org.tw/userguide3)
+* [Composer中文文档](http://docs.phpcomposer.com)
+* [Phalcon7中文文档](http://www.myleftstudio.com)
+* [PHP 之道](http://wulijun.github.io/php-the-right-way/)
+* [PHP标准规范中文版](https://psr.phphub.org)
+* [PHP中文手册](http://php.net/manual/zh/)
+* [Yii2中文文档](http://www.yiichina.com/doc/guide/2.0)
+
+
+#### Laravel
+
+* [Laravel 5.4 中文文档](http://d.laravel-china.org/docs/5.4)
+* [Laravel 6 中文文档](https://learnku.com/docs/laravel/6.x)
+* [Laravel 7 中文文档](https://learnku.com/docs/laravel/7.x)
+* [Laravel 8 中文文档](https://learnku.com/docs/laravel/8.x)
+
+
+#### Symfony
+
+* [Symfony 2 实例教程](https://wusuopu.gitbooks.io/symfony2_tutorial/content)
+* [Symfony 5 快速开发](https://symfony.com/doc/current/the-fast-track/zh_CN/index.html)
+
+
+### PostgreSQL
+
+* [PostgreSQL 8.2.3 中文文档](http://works.jinbuguo.com/postgresql/menu823/index.html)
+* [PostgreSQL 9.3.1 中文文档](http://www.postgres.cn/docs/9.3/index.html)
+* [PostgreSQL 9.4.4 中文文档](http://www.postgres.cn/docs/9.4/index.html)
+* [PostgreSQL 9.5.3 中文文档](http://www.postgres.cn/docs/9.5/index.html)
+* [PostgreSQL 9.6.0 中文文档](http://www.postgres.cn/docs/9.6/index.html)
+
+
+### Python
+
+* [简明 Python 教程](https://bop.molun.net) - Swaroop C H、沈洁元(翻译)、漠伦(翻译)
+* [人生苦短，我用python](https://www.cnblogs.com/derek1184405959/p/8579428.html) - (内含丰富的笔记以及各类教程)
+* [深入 Python 3](https://github.com/jiechic/diveintopython3)
+* [像计算机科学家一样思考Python](https://www.ctolib.com/docs/sfile/think-python-2e/0.html) - Allen B. Downey、大胖哥(翻译)
+* [Matplotlib 3.0.3 中文文档](http://www.osgeo.cn/matplotlib/) - (Online)
+* [Numpy 1.16 中文文档](http://www.osgeo.cn/numpy/) - (Online)
+* [Python 3 文档(简体中文) 3.2.2 documentation](http://docspy3zh.readthedocs.org/en/latest/)
+* [Python 3.8.0a3中文文档](http://www.osgeo.cn/cpython/) - (目前在线最全的中文文档了，Online)
+* [Python 中文学习大本营](http://www.pythondoc.com)
+* [Python 最佳实践指南](https://pythonguidecn.readthedocs.io/zh/latest/)
+* [Python Cookbook第三版](http://python3-cookbook.readthedocs.io/zh_CN/latest/) - David Beazley、Brian K.Jones、熊能(翻译)
+* [Python教程 - 廖雪峰的官方网站](http://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000)
+* [Python进阶](https://interpy.eastlakeside.com) - eastlakeside
+* [Python之旅](http://funhacks.net/explore-python) - Ethan
+* [Tornado 6.1 中文文档](http://www.osgeo.cn/tornado/) - (网络上其他的都是较旧版本的，Online)
+
+
+#### Django
+
+* [Django 1.11.6 中文文档](https://www.yiyibooks.cn/xx/Django_1.11.6/index.html)
+* [Django 2.2.1 中文文档](http://www.osgeo.cn/django/) - (这个很新，也很全，Online)
+* [Django 搭建个人博客教程 (2.1)](https://www.dusaiphoto.com/article/detail/2) - (杜赛) (HTML)
+* [Django book 2.0](http://djangobook.py3k.cn/2.0/)
+* [Django Girls 教程 (1.11)](https://tutorial.djangogirls.org/zh/) (HTML)
+
+
+### R
+
+* [153分钟学会 R](http://cran.r-project.org/doc/contrib/Liu-FAQ.pdf) (PDF)
+* [统计学与 R 读书笔记](http://cran.r-project.org/doc/contrib/Xu-Statistics_and_R.pdf) (PDF)
+* [用 R 构建 Shiny 应用程序](http://yanping.me/shiny-tutorial/) (《Building 'Shiny' Applications with R》中文版)
+* [R 导论](http://cran.r-project.org/doc/contrib/Ding-R-intro_cn.pdf) (《An Introduction to R》中文版) (PDF)
+
+
+### reStructuredText
+
+* [reStructuredText 入门](http://www.pythondoc.com/sphinx/rest.html)
+
+
+### Ruby
+
+* [笨方法学 Ruby](http://lrthw.github.io)
+* [Rails 风格指南](https://github.com/JuanitoFatas/rails-style-guide/blob/master/README-zhCN.md)
+* [Ruby 风格指南](https://github.com/JuanitoFatas/ruby-style-guide/blob/master/README-zhCN.md)
+* [Ruby on Rails 实战圣经](https://ihower.tw/rails4/)
+* [Ruby on Rails 指南](http://guides.ruby-china.org)
+* [Sinatra](http://www.sinatrarb.com/intro-zh.html)
+
+
+### Rust
+
+* [通过例子学习 Rust](https://github.com/rustcc/rust-by-example/)
+* [Rust 官方教程](https://github.com/KaiserY/rust-book-chinese)
+* [Rust 语言学习笔记](https://github.com/photino/rust-notes)
+* [RustPrimer](https://github.com/rustcc/RustPrimer)
+* [Tour of Rust](https://tourofrust.com/00_zh-cn.html)
+
+
+### Scala
+
+* [Effective Scala](http://twitter.github.io/effectivescala/index-cn.html)
+* [Scala 初学者指南](https://www.gitbook.com/book/windor/beginners-guide-to-scala/details) (《The Neophyte's Guide to Scala》中文版)
+* [Scala 课堂](http://twitter.github.io/scala_school/zh_cn/index.html) (Twitter的Scala中文教程)
+
+
+### Scheme
+
+* [Scheme 入门教程](http://deathking.github.io/yast-cn/) (《Yet Another Scheme Tutorial》中文版)
+
+
+### Scratch
+
+* [创意计算课程指南](http://cccgchinese.strikingly.com)
+
+
+### Shell
+
+* [Shell 编程范例](https://tinylab.gitbooks.io/shellbook/content) - 泰晓科技
+* [Shell 编程基础](http://wiki.ubuntu.org.cn/Shell%E7%BC%96%E7%A8%8B%E5%9F%BA%E7%A1%80)
+* [Shell 脚本编程30分钟入门](https://github.com/qinjx/30min_guides/blob/master/shell.md)
+* [shell-book](http://me.52fhy.com/shell-book/)
+* [The Linux Command Line 中文版](http://billie66.github.io/TLCL/book/)
+
+
+### Swift
+
+* [《The Swift Programming Language》中文版](https://www.gitbook.com/book/numbbbbb/-the-swift-programming-language-/details)
+
+
+### TypeScript
+
+* [TypeScript 教程](https://www.runoob.com/typescript/ts-tutorial.html) - runoob (HTML)
+* [TypeScript 入门教程](https://www.runoob.com/w3cnote/getting-started-with-typescript.html) - runoob (HTML)
+* [TypeScript 中文网](https://www.tslang.cn) (HTML)
+* [TypeScript Deep Dive 中文版](https://github.com/jkchao/typescript-book-chinese) - 三毛 (HTML)
+* [TypeScript Handbook（中文版）](https://www.runoob.com/manual/gitbook/TypeScript/_book/) - Patrick Zhong (HTML)
+
+
+#### Angular
+
+> :information_source: See also &#8230; [AngularJS](#angularjs)
+
+* [Angular 文档简介](https://angular.cn/docs) - Wang Zhicheng, Ye Zhimin, Yang Lin et al. (HTML)
+* [Angular Material 组件库](https://material.angular.cn) - Wang Zhicheng, Ye Zhimin, Yang Lin et al. (HTML)
+* [Angular Tutorial (教程：英雄之旅)](https://angular.cn/tutorial) - Wang Zhicheng, Ye Zhimin, Yang Lin et al. (HTML)
+
+
+#### Deno
+
+* [Deno 钻研之术](https://deno-tutorial.js.org)
+* [Deno进阶开发笔记](https://chenshenhai.com/deno_note) - 大深海
+
+
+### VBA (Microsoft Visual Basic Applications)
+
+* [简明Excel VBA](https://github.com/Youchien/concise-excel-vba)
+
+
+### Vim
+
+* [大家來學 VIM](http://www.study-area.org/tips/vim/index.html)
+
+
+### Visual Prolog
+
+* [Visual Prolog 7边练边学](http://wiki.visual-prolog.com/index.php?title=Visual_Prolog_for_Tyros_in_Chinese)
+* [Visual Prolog 7初学指南](http://wiki.visual-prolog.com/index.php?title=A_Beginners_Guide_to_Visual_Prolog_in_Chinese)
+
+
+> https://github.com/EbookFoundation/free-programming-books/blob/main/books/free-programming-books-zh.md
\ No newline at end of file
diff --git a/content/zh-cn/quick-forum/_index.html b/content/zh-cn/quick-forum/_index.html
index 4f4fb9c..ddd3636 100644
--- a/content/zh-cn/quick-forum/_index.html
+++ b/content/zh-cn/quick-forum/_index.html
@@ -9,3 +9,5 @@
 手把手从0到1教你实现一个社区系统
 
 {{% /blocks/lead %}}
+
+> https://github.com/EbookFoundation/free-programming-books/blob/main/books/free-programming-books-zh.md
\ No newline at end of file
diff --git "a/content/zh-cn/\345\210\206\345\270\203\345\274\217/\345\210\206\345\270\203\345\274\217\344\270\223\346\240\217\345\216\237\347\250\277.excalidraw" "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\345\210\206\345\270\203\345\274\217\344\270\223\346\240\217\345\216\237\347\250\277.excalidraw"
new file mode 100644
index 0000000..a44dee5
--- /dev/null
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diff --git "a/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/01.\345\210\206\345\270\203\345\274\217\350\256\276\350\256\241\346\250\241\345\274\217\347\273\274\350\277\260.md" "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/01.\345\210\206\345\270\203\345\274\217\350\256\276\350\256\241\346\250\241\345\274\217\347\273\274\350\277\260.md"
index 857653b..6868ee6 100644
--- "a/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/01.\345\210\206\345\270\203\345\274\217\350\256\276\350\256\241\346\250\241\345\274\217\347\273\274\350\277\260.md"
+++ "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/01.\345\210\206\345\270\203\345\274\217\350\256\276\350\256\241\346\250\241\345\274\217\347\273\274\350\277\260.md"
@@ -1,6 +1,6 @@
 ---
-weight: 1
-title: 01.分布式设计模式综述.md
+weight: 10
+title: 分布式设计模式综述
 tags: 
   - 分布式
 categories: 
@@ -72,7 +72,12 @@ keywords:
 
 ### 1.3 多主多从架构
 
-一主多从面临单主节点的瓶颈问题，那就考虑多主多从的策略，同样是主负责提供读写，从提供读；但是这里有一个核心点在于多主之间的数据同步，如何保证数据的一致性是这个架构模型的重点
+一主多从面临单主节点的瓶颈问题，那就考虑多主多从的策略，同样是主负责提供读写，从提供读；
+
+但是这里有一个核心点在于多主之间的数据同步，如何保证数据的一致性是这个架构模型的重点
+
+如MySql的双主双从可以说是一个典型的应用场景，在实际使用的时候除了上面的一致性之外，还需要考虑主键id冲突的问题
+
 
 ### 1.4 普通集群模式
 
@@ -92,32 +97,37 @@ keywords:
 
 {{% /pageinfo %}}
 
-### 1.5 缓存模型
+### 1.5 数据分片架构
 
-缓存实际上并不是分布式独有的，这里把它加进来，主要是因为实在是应用得太广了，无论是应用服务、基础软件工具还是操作系统，大量都可以见到缓存的身影
+> 这个分片模型的描述可能并不准确，大家看的时候重点理解一下这个思想
 
-缓存的核心思想在于： 借助更高效的IO方式，来替代代价昂贵的IO方式
+前面几个的架构中，采用的是数据冗余的方式，即所有的实例都有一个全量的数据，而这里的数据分片，则从数据拆分的思路来处理，将全量的数据，通过一定规则拆分到多个系统中，每个系统包含部分的数据，减小单个节点的压力，主要用于解决数据量大的场景
 
-如：
+比如redis的集群方式，通过hash槽的方式进行分区
+
+如es的索引分片存储
 
-- redis的性能高于mysql
-- 如内存的读写，远高于磁盘IO，文件IO
-- 磁盘顺序读写 > 随机读写
+
+### 1.6 小结
+
+这一节主要从架构设计层面对当前的分布式系统所采用的方案进行了一个简单的归类与小结，并不一定全面，欢迎各位大佬留言指正
 
 {{% pageinfo %}}
 
-用好缓存可以有效提高应用性能，下面以一个普通的java前台应用为例说明
+基于冗余的思想：
 
-- JVM缓存 -> redis/memcache 专用的缓存工具 -> mysql缓存 -> 操作系统文件缓存 -> 磁盘文件
+- 主备
+- 主从
+- 多主多从
+- 无中心集群
 
-缓存面临的核心问题，则在于
+基于拆分的思想：
 
-- 一致性问题：缓存与db的一致性如何保障（相信大家都听说过或者实际处理过这种问题）
-- 数据完整性：比如常见的先写缓存，异步刷新到磁盘，那么缓存到磁盘刷新这段时间内，若宕机导致数据丢失怎么办？
-  - TIP: 上面这个问题可以参考mysql的redolog
+- 数据分片
 
-{{% /pageinfo %}}
+> 对于拆分这一块，我们常说的分库分表也体现的是这一思想
 
+{{% /pageinfo %}}
 
 ## 2.理论基础
 
@@ -180,7 +190,21 @@ CAP 定理指出，分布式系统 **不可能** 同时提供下面三个要求
 
 {{%  /pageinfo %}}
 
-### 2.3 Paxos共识算法
+
+### 2.3 PACELEC 定理
+
+> 这个真没听说过，以下内容来自:
+> * [Distributed System Design Patterns | by Nishant | Medium](https://medium.com/@nishantparmar/distributed-system-design-patterns-2d20908fecfc)
+
+- 如果有一个分区（'P'），分布式系统可以在可用性和一致性（即'A'和'C'）之间进行权衡;
+- 否则（'E'），当系统在没有分区的情况下正常运行时，系统可以在延迟（'L'）和一致性（'C'）之间进行权衡。
+
+![](../imgs/220708/peace.jpg)
+
+定理（PAC）的第一部分与CAP定理相同，ELC是扩展。整个论点假设我们通过复制来保持高可用性。因此，当失败时，CAP定理占上风。但如果没有，我们仍然必须考虑复制系统的一致性和延迟之间的权衡。
+
+
+### 2.4 Paxos共识算法
 
 > Paxos算法解决的问题是分布式共识性问题，即一个分布式系统中的各个进程如何就某个值（决议）通过共识达成一致
 
@@ -197,14 +221,16 @@ CAP 定理指出，分布式系统 **不可能** 同时提供下面三个要求
 - Learner: 不参与决策，获取最新的提案value
 
 
-### 2.4 Raft算法
+### 2.5 Raft算法
 
 > 推荐有兴趣的小伙伴，查看
 > * [Raft 算法动画演示](http://thesecretlivesofdata.com/raft/)
 > * [Raft算法详解 - 知乎](https://zhuanlan.zhihu.com/p/32052223)
 
 
-为了解决paxos的复杂性，raft算法提供了一套更易理解的算法基础
+为了解决paxos的复杂性，raft算法提供了一套更易理解的算法基础，其核心流程在于：
+
+leader接受请求，并转发给follow，当大部分follow响应之后，leader通知所有的follow提交请求、同时自己也提交请求并告诉调用方ok
 
 角色划分：
 
@@ -212,55 +238,19 @@ CAP 定理指出，分布式系统 **不可能** 同时提供下面三个要求
 - Follow: 接受并持久化Leader同步的数据，在Leader告之日志可以提交之后，提交
 - Candidate：Leader选举过程中的临时角色，向其他节点拉选票，得到多数的晋升为leader，选举完成之后不存在这个角色
 
-![Raft角色](../imgs/220708/raft01.jpg)
-
-Follower只响应其他服务器的请求。如果Follower超时没有收到Leader的消息，它会成为一个Candidate并且开始一次Leader选举。收到大多数服务器投票的Candidate会成为新的Leader。Leader在宕机之前会一直保持Leader的状态。
-
-#### 选举
-
-Raft算法将时间分为一个个的任期（term），每一个term的开始都是Leader选举。在成功选举Leader之后，Leader会在整个term内管理整个集群。如果Leader选举失败，该term就会因为没有Leader而结束。
-
-Raft 使用心跳（heartbeat）来检测Leader是否存活，Leader向所有Followers周期性发送heartbeat，表示自己还活着
-
-如果Follower在选举超时时间内没有收到Leader的heartbeat，就会等待一段随机的时间后发起一次Leader选举
-
-![Raft选举](../imgs/220708/raft02.jpg)
-
-选举的核心要点在于：
-
-- follower一段时间没有接受到leader的心跳，认为leader挂了，变成candidate状态。 为了避免选举冲突，这个超时时间是一个150/300ms之间的随机数
-- candidate，会重置计时器，先投自己一票，向其他节点拉选票
-- 得到多数选票的晋升为主节点
-- 当多个节点的选票相同，则选举失败；之后等待计时器超时的follower会变成candidate，将任期加一并开始新一轮的投票。
-
-#### 日志同步
-
-Leader接受外部请求，并将请求作为LogEntries加入日志中，然后复制给其他的Follow节点，
-
-- 大部分结点响应时才提交日志
-- 通知所有follower结点日志已提交
-- 所有follower也提交日志
-
-![Raft日志同步](../imgs/220708/raft03.jpg)
-
-
-#### 脑裂问题
-
-> 指在一个高可用（HA）系统中，当联系着的两个节点断开联系时，本来为一个整体的系统，分裂为两个独立节点，这时两个节点开始争抢共享资源， 结果会导致系统混乱，数据损坏。
 
-假设`A~E`五个结点，B是leader。 如果发生“脑裂”，A、B成为一个子分区，C、D、E成为一个子分区。 
+![raft共识流程](../imgs/220708/raft03.jpg)
 
-- 此时C、D、E会发生选举，选出C作为新term的leader。这样我们在两个子分区内就有了不同term的两个leader
-- 这时如果有客户端写A时, 因为B无法复制日志到大部分follower所以日志处于uncommitted未提交状态。
-- 而同时另一个客户端对C的写操作却能够正确完成，因为C是新的leader，它只知道D和E。
-- 当网络通信恢复，B能够发送心跳给C、D、E了，却发现有新的leader了，因为C的term值更大，所以B自动降格为follower。 然后A和B都回滚未提交的日志，并从新leader那里复制最新的日志。
 
-### 2.5 ZAB协议
+### 2.6 ZAB协议
 
 > ZAB(Zookeeper Atomic Broadcast) 协议是为分布式协调服务ZooKeeper专门设计的一种支持崩溃恢复的一致性协议，基于该协议，ZooKeeper 实现了一种 主从模式的系统架构来保持集群中各个副本之间的数据一致性。
 >
 > * [zookeeper核心之ZAB协议就这么简单！](https://segmentfault.com/a/1190000037550497)
 
+
+主要用于zk的数据一致性场景，其核心思想是Leader再接受到事务请求之后，通过给Follower，当半数以上的Follower返回ACK之后，Leader提交提案，并向Follower发送commit信息
+
 **角色划分**
 
 - Leader: 负责整个Zookeeper 集群工作机制中的核心
@@ -275,30 +265,79 @@ Leader接受外部请求，并将请求作为LogEntries加入日志中，然后
   - 也不参与 Leader 选举投票
   - 只提供非事务的服务（查询），通常在不影响集群事务处理能力的前提下提升集群的非事务处理能力。
 
-**消息广播**
 
 ![ZAB消息广播](../imgs/220708/zab00.jpg)
 
 
-leader再接收到事务请求之后，将请求转换为事务Proposal提案，leader会为每个follower创建一个队列，将该事务proposal放入响应队列，保证事务的顺序性；
 
-然后再在队列中按照顺序向其它节点广播该提案；
+### 2.7 2PC协议
+
+> two-phase commit protocol，两阶段提交协议，主要是为了解决强一致性，中心化的强一致性协议
+
+**角色划分**
+
+- 协调节点(coordinator)：中心化
+- 参与者节点(partcipant)：多个
+
+**执行流程**
+
+协调节点接收请求，然后向参与者节点提交 `precommit`，当所有的参与者都回复ok之后，协调节点再给所有的参与者节点提交`commit`，所有的都返回ok之后，才表明这个数据确认提交
+
+当第一个阶段，有一个参与者失败，则所有的参与者节点都回滚
+
+
+![2pc流程](../imgs/220708/2pc00.jpg)
+
+{{% pageinfo %}}
+
+**特点**
+
+优点在于实现简单
+
+缺点也很明显
+
+- 协调节点的单点故障
+- 第一阶段全部ack正常，第二阶段存在部分参与者节点异常时，可能出现不一致问题
+
+{{%  /pageinfo %}}
+
+### 2.8 3PC协议
+
+> [分布式事务：两阶段提交与三阶段提交 - SegmentFault 思否](https://segmentfault.com/a/1190000012534071)
+>
+
+在两阶段的基础上进行扩展，将第一阶段划分两部，cancommit + precommit，第三阶段则为 docommit
+
+
+**第一阶段 cancommit**
+
+该阶段协调者会去询问各个参与者是否能够正常执行事务，参与者根据自身情况回复一个预估值，相对于真正的执行事务，这个过程是轻量的
 
-follower收到后会将其以事务的形式写入到本地日志中，并且向leader发送Ack信息确认
+**第二阶段 precommit**
 
-有一半以上的follower返回Ack信息时， leader会提交该提案并且向其它节点发送commit信息
+本阶段协调者会根据第一阶段的询盘结果采取相应操作，若所有参与者都返回ok，则协调者向参与者提交事务执行(单不提交)通知；否则通知参与者abort回滚
 
+**第三阶段 docommit**
 
-**事务有序性**
+如果第二阶段事务未中断，那么本阶段协调者将会依据事务执行返回的结果来决定提交或回滚事务，若所有参与者正常执行，则提交；否则协调者+参与者回滚
 
-队列 + 事务递增ID（ZXID）来保证提案的有序性，
 
-ZXID:
+在本阶段如果因为协调者或网络问题，导致参与者迟迟不能收到来自协调者的 commit 或 rollback 请求，那么参与者将不会如两阶段提交中那样陷入阻塞，而是等待超时后继续 commit，相对于两阶段提交虽然降低了同步阻塞，但仍然无法完全避免数据的不一致
 
-- 高32位：纪元epoch，新选举一个leader，纪元+1
-- 低32位：计数器counter，单调递增的数字
+{{%  pageinfo %}}
 
-### 2.6 Gossip协议
+**特点**
+
+- 降低了阻塞与单点故障：
+  - 参与者返回 CanCommit 请求的响应后，等待第二阶段指令，若等待超时/协调者宕机，则自动 abort，降低了阻塞；
+  - 参与者返回 PreCommit 请求的响应后，等待第三阶段指令，若等待超时/协调者宕机，则自动 commit 事务，也降低了阻塞；
+- 数据不一致问题依然存在
+  - 比如第三阶段协调者发出了 abort 请求，然后有些参与者没有收到 abort，那么就会自动 commit，造成数据不一致
+
+{{%  /pageinfo %}}
+
+
+### 2.9 Gossip协议
 
 > Gossip 协议，顾名思义，就像流言蜚语一样，利用一种随机、带有传染性的方式，将信息传播到整个网络中，并在一定时间内，使得系统内的所有节点数据一致。Gossip 协议通过上面的特性，可以保证系统能在极端情况下（比如集群中只有一个节点在运行）也能运行
 >
@@ -316,6 +355,8 @@ ZXID:
 
 ![Gossip传播示意图](../imgs/220708/gossip.gif)
 
+{{%  pageinfo %}}
+
 **特点**
 
 - 扩展性：允许节点动态增加、减少，新增的节点状态最终会与其他节点一致
@@ -329,21 +370,10 @@ ZXID:
 - 消息延迟：节点只会随机向少数几个节点发送消息，消息最终是通过多个轮次的散播而到达全网的，因此使用 Gossip 协议会造成不可避免的消息延迟
 - 消息冗余：节点会定期随机选择周围节点发送消息，而收到消息的节点也会重复该步骤，导致消息的冗余
 
-
-### 2.7 PACELEC 定理
-
-> 这个真没听说过，以下内容来自:
-> * [Distributed System Design Patterns | by Nishant | Medium](https://medium.com/@nishantparmar/distributed-system-design-patterns-2d20908fecfc)
-
-- 如果有一个分区（'P'），分布式系统可以在可用性和一致性（即'A'和'C'）之间进行权衡;
-- 否则（'E'），当系统在没有分区的情况下正常运行时，系统可以在延迟（'L'）和一致性（'C'）之间进行权衡。
-
-![](../imgs/220708/peace.jpg)
-
-定理（PAC）的第一部分与CAP定理相同，ELC是扩展。整个论点假设我们通过复制来保持高可用性。因此，当失败时，CAP定理占上风。但如果没有，我们仍然必须考虑复制系统的一致性和延迟之间的权衡。
+{{%  /pageinfo %}}
 
 
-### 2.8 小结
+### 2.10 小结
 
 本节主要介绍的是分布式系统设计中的一些常见的理论基石，如分布式中如何保障一致性，如何对一个提案达成共识
 
@@ -352,98 +382,91 @@ ZXID:
 - zab一致性协议
 - gossip消息同步协议
 
+## 3.算法
 
-## 3.技术方案
-
-这一节将介绍下分布式系统中常见的设计方案，比如常见的最终一致性的两阶段、三阶段提交，缓存异步刷盘的日志预写策略等
-
-### 3.1 2PC两阶段提交
+这一节将主要介绍下分布式系统中的经典的算法，比如常用于分区的一致性hash算法，适用于一致性的Quorum NWR算法，PBFT拜占庭容错算法，区块链中大量使用的工作量证明PoW算法等
 
-> two-phase commit protocol，两阶段提交，主要是为了解决强一致性，中心化的强一致性协议
+### 3.1 一致性hash算法
 
-**角色划分**
-
-- 协调节点(coordinator)：中心化
-- 参与者节点(partcipant)：多个
-
-**执行流程**
+一致性hash算法，主要应用于数据分片场景下，有效降低服务的新增、删除对数据复制的影响
 
-协调节点接收请求，然后向参与者节点提交 `precommit`，当所有的参与者都回复ok之后，协调节点再给所有的参与者节点提交`commit`，所有的都返回ok之后，才表明这个数据确认提交
+通过对数据项的键进行哈希处理映射其在环上的位置，然后顺时针遍历环以查找位置大于该项位置的第一个节点，将每个由键标识的数据分配给hash环中的一个节点
 
-当第一个阶段，有一个参与者失败，则所有的参与者节点都回滚
+![一致性hash算法](../imgs/220708/hash.jpg)
 
+一致散列的主要优点是增量稳定性; 节点添加删除，对整个集群而言，仅影响其直接邻居，其他节点不受影响。
 
-![2pc流程](../imgs/220708/2pc00.jpg)
+**注意：**
 
-**特点**
+- redis集群实现了一套hash槽机制，其核心思想与一致性hash比较相似
 
-优点在于实现简单
 
-缺点也很明显
+### 3.2 Quorum NWR算法
 
-- 协调节点的单点故障
-- 第一阶段全部ack正常，第二阶段存在部分参与者节点异常时，可能出现不一致问题
+> 用来保证数据冗余和最终一致性的投票算法，其主要数学思想来源于鸽巢原理
+> 
+> * [分布式系统之Quorum （NRW）算法-阿里云开发者社区](https://developer.aliyun.com/article/53498)
 
+- N 表示副本数，又叫做复制因子（Replication Factor）。也就是说，N 表示集群中同一份数据有多少个副本
+- W，又称写一致性级别（Write Consistency Level），表示成功完成 W 个副本更新写入，才会视为本次写操作成功
+- R 又称读一致性级别（Read Consistency Level），表示读取一个数据对象时需要读 R 个副本, 才会视为本次读操作成功
 
-### 3.2 3PC三阶段提交
+Quorum NWR算法要求每个数据拷贝对象 都可以投1票，而每一个操作的执行则需要获取最小的读票数，写票数；通常来讲写票数W一般需要超过N/2，即我们通常说的得到半数以上的票才表示数据写入成功
 
-> [分布式事务：两阶段提交与三阶段提交 - SegmentFault 思否](https://segmentfault.com/a/1190000012534071)
->
-> 本节所有图来自上文
+事实上当W=N、R=1时，即所谓的WARO(Write All Read One)。就是CAP理论中CP模型的场景
 
-在两阶段的基础上进行扩展，将第一阶段划分两部，cancommit + precommit，第三阶段则为 docommit
 
+### 3.3 PBFT拜占庭算法
 
-**第一阶段 cancommit**
+拜占庭算法主要针对的是分布式场景下无响应，或者响应不可信的情况下的容错问题，其核心分三段流程，如下
 
-该阶段协调者会去询问各个参与者是否能够正常执行事务，参与者根据自身情况回复一个预估值，相对于真正的执行事务，这个过程是轻量的
+![拜占庭算法](../imgs/220708/bzt.jpg)
 
-**第二阶段 precommit**
+假设集群节点数为 N，f个故障节点(无响应)和f个问题节点(无响应或错误响应),f+1个正常节点，即 3f+1=n
 
-本阶段协调者会根据第一阶段的询盘结果采取相应操作，询盘结果主要有 3 种：
+- 客户端向主节点发起请求，主节点接受请求之后，向其他节点广播 pre-prepare 消息
+- 节点接受pre-prepare消息之后，若同意请求，则向其他节点广播 prepare 消息；
+- 当一个节点接受到2f+1个prepare新消息，则进入commit阶段，并广播commit消息
+- 当收到 2f+1 个 commit 消息后（包括自己），代表大多数节点已经进入 commit 阶段，这一阶段已经达成共识，于是节点就会执行请求，写入数据
 
-| 第一阶段响应 | 步骤 |
-| --- | --- |
-| 所有的参与者都返回确定 | 1.协调者向所有的事务参与者发送事务执行通知 <br/> 2.参与者收到通知后执行事务但不提交 <br/> 3.参与者将事务执行情况返回给客户端|
-| 一个或多个参与者返回否定信息 | 无法执行，向各个参与者发出 abort 通知，请求退出预备状态 | 
-| 协调者等待超时 | 同上 |
+{{%  pageinfo %}}
 
+相比 Raft 算法完全不适应有人作恶的场景，PBFT 算法能容忍 (n 1)/3 个恶意节点 (也可以是故障节点)。另外，相比 PoW 算法，PBFT 的优点是不消耗算 力。PBFT 算法是O(n ^ 2) 的消息复杂度的算法，所以以及随着消息数 的增加，网络时延对系统运行的影响也会越大，这些都限制了运行 PBFT 算法的分布式系统 的规模，也决定了 PBFT 算法适用于中小型分布式系统
 
-![3PC回滚](../imgs/220708/3pc00.jpg)
+{{%  /pageinfo %}}
 
+### 3.4 PoW算法
 
-**第三阶段 docommit**
+工作量证明 (Proof Of Work，简称 PoW)，同样应用于分布式下的一致性场景，区别于前面的raft, pbft, paxos采用投票机制达成共识方案，pow采用工作量证明
 
-如果第二阶段事务未中断，那么本阶段协调者将会依据事务执行返回的结果来决定提交或回滚事务，分为 3 种情况：
+客户端需要做一定难度的工作才能得出一个结果，验证方却很容易通过结果来检查出客户端是不是做了相应的工作，通过消耗一定工作浪，增加消息伪造的成本，PoW以区块链中广泛应用而广为人知，下面以区块链来简单说一下PoW的算法应用场景
 
-| 第二阶段响应 | 步骤 | 
-| --- | ---|
-| 所有的参与者都能正常执行事务 | 1.向所有参与者提交commit <br/> 2.所有参与者在收到通知之后执行 commit 操作释放资源 <br/> 3.参与者向协调者反馈事务提交结果 |
-| 一个或多个参与者执行事务失败 | 协调者认为事务无法成功执行 <br/> 1.向所有参与者提交rollback <br/> 2.所有参与者执行rollback回滚 <br/> 3.参与者向协调者反馈事务回滚结果 |
-| 协调者等待超时 | 同上 |
+以BTC的转账为例，A转n个btc给B，如何保证不会同时将这n个币转给C？
 
+- A转账给B，交易信息记录在一个区块1中
+- A转账给C，交易信息被记录在另一个区块2中
+- 当区块1被矿工成功提交到链上，并被大多数认可（通过校验区块链上的hash值验证是否准确，而这个hash值体现的是矿工的工作量），此时尚未提交的区块2则会被抛弃
+- 若区块1被提交，区块2也被提交，各自有部分人认可，就会导致分叉，区块链中采用的是优选最长的链作为主链，丢弃分叉的部分（这就属于区块链的知识点了，有兴趣的小伙伴可以扩展下相关知识点，这里就不展开了）
 
-事务提交流程图：
 
-![3PC提交](../imgs/220708/3pc01.jpg)
+PoW的算法，主要应用在上面的区块提交验证，通过hash值计算来消耗算力，以此证明矿工确实有付出，得到多数认可的可以达成共识
 
-事务回滚流程图：
 
-![3PC回滚](../imgs/220708/3pc02.jpg)
+### 3.5 小结
 
+本节主要介绍了下当前分布式下常见的算法，
 
-在本阶段如果因为协调者或网络问题，导致参与者迟迟不能收到来自协调者的 commit 或 rollback 请求，那么参与者将不会如两阶段提交中那样陷入阻塞，而是等待超时后继续 commit，相对于两阶段提交虽然降低了同步阻塞，但仍然无法完全避免数据的不一致
+- 分区的一致性hash算法: 基于hash环，减少节点动态增加减少对整个集群的影响；适用于数据分片的场景
+- 适用于一致性的Quorum NWR算法: 投票算法，定义如何就一个提案达成共识
+- PBFT拜占庭容错算法: 适用于集群中节点故障、或者不可信的场景
+- 区块链中大量使用的工作量证明PoW算法: 通过工作量证明，认可节点的提交
 
-**特点**
 
-- 降低了阻塞与单点故障：
-  - 参与者返回 CanCommit 请求的响应后，等待第二阶段指令，若等待超时/协调者宕机，则自动 abort，降低了阻塞；
-  - 参与者返回 PreCommit 请求的响应后，等待第三阶段指令，若等待超时/协调者宕机，则自动 commit 事务，也降低了阻塞；
-- 数据不一致问题依然存在
-  - 比如第三阶段协调者发出了 abort 请求，然后有些参与者没有收到 abort，那么就会自动 commit，造成数据不一致
+## 4.技术思想
 
+这一节的内容相对前面几个而言，并不太容易进行清晰的分类；主要包含一些高质量的分布式系统的实践中，值得推荐的设计思想、技术细节
 
-### 3.3 CQRS
+### 4.1 CQRS
 
 > * [DDD 中的那些模式 — CQRS - 知乎](https://zhuanlan.zhihu.com/p/115685384)
 > * [详解CQRS架构模式_架构_Kislay Verma_InfoQ精选文章](https://www.infoq.cn/article/wdlpjosudoga34jutys9)
@@ -455,7 +478,7 @@ Command Query Responsibility Segregation 即我们通俗理解的读写分离，
 用途在于将领域模型与查询功能进行分离，让一些复杂的查询摆脱领域模型的限制，以更为简单的 DTO 形式展现查询结果。同时分离了不同的数据存储结构，让开发者按照查询的功能与要求更加自由的选择数据存储引擎
 
 
-### 3.4 复制负载平衡服务
+### 4.2 复制负载平衡服务
 
 > * [分布式系统设计:服务模式之复制负载平衡服务 - 知乎](https://zhuanlan.zhihu.com/p/34191846)
 > * [负载均衡调度算法大全 | 菜鸟教程](https://www.runoob.com/w3cnote/balanced-algorithm.html)
@@ -574,20 +597,6 @@ ElasticSearch:
 
 再比如es的分段存储，一个段就是一个小的存储文件
 
-### 3.14 一致性hash
-
-一致性hash算法，主要应用于数据分片场景下，有效降低服务的新增、删除对数据复制的影响
-
-通过对数据项的键进行哈希处理映射其在环上的位置，然后顺时针遍历环以查找位置大于该项位置的第一个节点，将每个由键标识的数据项分配给节点。与节点关联的节点是数据项的位置。
-
-
-![一致性hash算法](../imgs/220708/hash.jpg)
-
-一致散列的主要优点是增量稳定性;节点离开或到达集群仅影响其直接邻居，其他节点不受影响。
-
-**注意：**
-
-- redis集群实现了一套hash槽机制，其核心思想与一致性hash比较相似
 
 
 ### 3.15 布隆过滤器
@@ -638,4 +647,33 @@ HDFS和Chubby将每个文件的校验和与数据一起存储。
 
 
 
-* [Distributed System Design Patterns | by Nishant | Medium](https://medium.com/@nishantparmar/distributed-system-design-patterns-2d20908fecfc)
\ No newline at end of file
+* [Distributed System Design Patterns | by Nishant | Medium](https://medium.com/@nishantparmar/distributed-system-design-patterns-2d20908fecfc)
+
+## 4.分布式系统中用到的技术点
+
+### 4.1 缓存
+
+缓存实际上并不是分布式独有的，这里把它加进来，主要是因为实在是应用得太广了，无论是应用服务、基础软件工具还是操作系统，大量都可以见到缓存的身影
+
+缓存的核心思想在于： 借助更高效的IO方式，来替代代价昂贵的IO方式
+
+如：
+
+- redis的性能高于mysql
+- 如内存的读写，远高于磁盘IO，文件IO
+- 磁盘顺序读写 > 随机读写
+
+{{% pageinfo %}}
+
+用好缓存可以有效提高应用性能，下面以一个普通的java前台应用为例说明
+
+- JVM缓存 -> redis/memcache 专用的缓存工具 -> mysql缓存 -> 操作系统文件缓存 -> 磁盘文件
+
+缓存面临的核心问题，则在于
+
+- 一致性问题：缓存与db的一致性如何保障（相信大家都听说过或者实际处理过这种问题）
+- 数据完整性：比如常见的先写缓存，异步刷新到磁盘，那么缓存到磁盘刷新这段时间内，若宕机导致数据丢失怎么办？
+  - TIP: 上面这个问题可以参考mysql的redolog
+
+{{% /pageinfo %}}
+
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HcmV?d00001

diff --git "a/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\346\236\266\346\236\204\350\256\276\350\256\241/_index.md" "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\346\236\266\346\236\204\350\256\276\350\256\241/_index.md"
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--- /dev/null
+++ "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\346\236\266\346\236\204\350\256\276\350\256\241/_index.md"
@@ -0,0 +1,10 @@
+---
+title: 基础架构
+weight: 3
+---
+
+{{% pageinfo %}}
+
+分布式系统常见的基础架构设计说明
+
+{{% /pageinfo %}}
diff --git "a/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/Raft\345\205\261\350\257\206\347\256\227\346\263\225.md" "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/Raft\345\205\261\350\257\206\347\256\227\346\263\225.md"
new file mode 100644
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--- /dev/null
+++ "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/Raft\345\205\261\350\257\206\347\256\227\346\263\225.md"
@@ -0,0 +1,74 @@
+---
+weight: 4
+title: raft共识算法
+tags: 
+  - 分布式
+  - 算法
+categories: 
+  - 分布式
+  - 设计模式
+  - 理论基础
+date: 2022-07-12 19:27:54
+keywords: 
+  - 分布式
+  - 设计模式
+  - raft
+---
+
+# Raft共识算法
+
+> 推荐有兴趣的小伙伴，查看
+> * [Raft 算法动画演示](http://thesecretlivesofdata.com/raft/)
+> * [Raft算法详解 - 知乎](https://zhuanlan.zhihu.com/p/32052223)
+
+
+为了解决paxos的复杂性，raft算法提供了一套更易理解的算法基础
+
+角色划分：
+
+- Leader：领导者，接受客户端请求，并向Follower同步请求，当数据同步到大多数节点上后告诉Follower提交日志
+- Follow: 接受并持久化Leader同步的数据，在Leader告之日志可以提交之后，提交
+- Candidate：Leader选举过程中的临时角色，向其他节点拉选票，得到多数的晋升为leader，选举完成之后不存在这个角色
+
+![Raft角色](../../imgs/220708/raft01.jpg)
+
+Follower只响应其他服务器的请求。如果Follower超时没有收到Leader的消息，它会成为一个Candidate并且开始一次Leader选举。收到大多数服务器投票的Candidate会成为新的Leader。Leader在宕机之前会一直保持Leader的状态。
+
+## 选举
+
+Raft算法将时间分为一个个的任期（term），每一个term的开始都是Leader选举。在成功选举Leader之后，Leader会在整个term内管理整个集群。如果Leader选举失败，该term就会因为没有Leader而结束。
+
+Raft 使用心跳（heartbeat）来检测Leader是否存活，Leader向所有Followers周期性发送heartbeat，表示自己还活着
+
+如果Follower在选举超时时间内没有收到Leader的heartbeat，就会等待一段随机的时间后发起一次Leader选举
+
+![Raft选举](../../imgs/220708/raft02.jpg)
+
+选举的核心要点在于：
+
+- follower一段时间没有接受到leader的心跳，认为leader挂了，变成candidate状态。 为了避免选举冲突，这个超时时间是一个150/300ms之间的随机数
+- candidate，会重置计时器，先投自己一票，向其他节点拉选票
+- 得到多数选票的晋升为主节点
+- 当多个节点的选票相同，则选举失败；之后等待计时器超时的follower会变成candidate，将任期加一并开始新一轮的投票。
+
+## 日志同步
+
+Leader接受外部请求，并将请求作为LogEntries加入日志中，然后复制给其他的Follow节点，
+
+- 大部分结点响应时才提交日志
+- 通知所有follower结点日志已提交
+- 所有follower也提交日志
+
+![Raft日志同步](../../imgs/220708/raft03.jpg)
+
+
+## 脑裂问题
+
+> 指在一个高可用（HA）系统中，当联系着的两个节点断开联系时，本来为一个整体的系统，分裂为两个独立节点，这时两个节点开始争抢共享资源， 结果会导致系统混乱，数据损坏。
+
+假设`A~E`五个结点，B是leader。 如果发生“脑裂”，A、B成为一个子分区，C、D、E成为一个子分区。 
+
+- 此时C、D、E会发生选举，选出C作为新term的leader。这样我们在两个子分区内就有了不同term的两个leader
+- 这时如果有客户端写A时, 因为B无法复制日志到大部分follower所以日志处于uncommitted未提交状态。
+- 而同时另一个客户端对C的写操作却能够正确完成，因为C是新的leader，它只知道D和E。
+- 当网络通信恢复，B能够发送心跳给C、D、E了，却发现有新的leader了，因为C的term值更大，所以B自动降格为follower。 然后A和B都回滚未提交的日志，并从新leader那里复制最新的日志。
diff --git "a/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/ZAB\345\215\217\350\256\256.md" "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/ZAB\345\215\217\350\256\256.md"
new file mode 100644
index 0000000..7f150ae
--- /dev/null
+++ "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/ZAB\345\215\217\350\256\256.md"
@@ -0,0 +1,59 @@
+---
+weight: 5
+title: zab协议
+tags: 
+  - 分布式
+  - 算法
+categories: 
+  - 分布式
+  - 设计模式
+  - 理论基础
+date: 2022-07-12 19:27:54
+keywords: 
+  - 分布式
+  - 设计模式
+  - zab
+---
+
+# Zookeeper Atomic Broadcast, ZK原子广播协议
+
+> ZAB(Zookeeper Atomic Broadcast) 协议是为分布式协调服务ZooKeeper专门设计的一种支持崩溃恢复的一致性协议，基于该协议，ZooKeeper 实现了一种 主从模式的系统架构来保持集群中各个副本之间的数据一致性。
+>
+> * [zookeeper核心之ZAB协议就这么简单！](https://segmentfault.com/a/1190000037550497)
+
+**角色划分**
+
+- Leader: 负责整个Zookeeper 集群工作机制中的核心
+  - 事务请求的唯一调度和处理者，保证集群事务处理的顺序性
+  - 集群内部各服务器的调度者
+- Follower：Leader的追随者
+  - 处理客户端的非实物请求，转发事务请求给 Leader 服务器
+  - 参与事务请求 Proposal 的投票
+  - 参与 Leader 选举投票
+- Observer：是 zookeeper 自 3.3.0 开始引入的一个角色，
+  - 它不参与事务请求 Proposal 的投票，
+  - 也不参与 Leader 选举投票
+  - 只提供非事务的服务（查询），通常在不影响集群事务处理能力的前提下提升集群的非事务处理能力。
+
+**消息广播**
+
+![ZAB消息广播](../../imgs/220708/zab00.jpg)
+
+
+leader再接收到事务请求之后，将请求转换为事务Proposal提案，leader会为每个follower创建一个队列，将该事务proposal放入响应队列，保证事务的顺序性；
+
+然后再在队列中按照顺序向其它节点广播该提案；
+
+follower收到后会将其以事务的形式写入到本地日志中，并且向leader发送Ack信息确认
+
+有一半以上的follower返回Ack信息时， leader会提交该提案并且向其它节点发送commit信息
+
+
+**事务有序性**
+
+队列 + 事务递增ID（ZXID）来保证提案的有序性，
+
+ZXID:
+
+- 高32位：纪元epoch，新选举一个leader，纪元+1
+- 低32位：计数器counter，单调递增的数字
\ No newline at end of file
diff --git "a/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/_index.md" "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/_index.md"
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index 0000000..b4ef0fc
--- /dev/null
+++ "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/_index.md"
@@ -0,0 +1,10 @@
+---
+title: 理论基础篇
+weight: 2
+---
+
+{{% pageinfo %}}
+
+分布式系统相关的理论基础
+
+{{% /pageinfo %}}
diff --git "a/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/\344\270\211\351\230\266\346\256\265\346\217\220\344\272\244\345\215\217\350\256\256.md" "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/\344\270\211\351\230\266\346\256\265\346\217\220\344\272\244\345\215\217\350\256\256.md"
new file mode 100644
index 0000000..610c435
--- /dev/null
+++ "b/content/zh-cn/\345\210\206\345\270\203\345\274\217/\350\256\276\350\256\241\346\250\241\345\274\217/\347\220\206\350\256\272\345\237\272\347\241\200/\344\270\211\351\230\266\346\256\265\346\217\220\344\272\244\345\215\217\350\256\256.md"
@@ -0,0 +1,71 @@
+---
+weight: 8
+title: 三阶段协议
+tags: 
+  - 分布式
+  - 算法
+categories: 
+  - 分布式
+  - 设计模式
+  - 理论基础
+date: 2022-07-12 19:27:54
+keywords: 
+  - 分布式
+  - 设计模式
+  - 三阶段提交
+---
+
+在两阶段的基础上进行扩展，将第一阶段划分两部，cancommit + precommit，第三阶段则为 docommit
+
+
+**第一阶段 cancommit**
+
+该阶段协调者会去询问各个参与者是否能够正常执行事务，参与者根据自身情况回复一个预估值，相对于真正的执行事务，这个过程是轻量的
+
+**第二阶段 precommit**
+
+本阶段协调者会根据第一阶段的询盘结果采取相应操作，询盘结果主要有 3 种：
+
+| 第一阶段响应 | 步骤 |
+| --- | --- |
+| 所有的参与者都返回确定 | 1.协调者向所有的事务参与者发送事务执行通知 <br/> 2.参与者收到通知后执行事务但不提交 <br/> 3.参与者将事务执行情况返回给客户端|
+| 一个或多个参与者返回否定信息 | 无法执行，向各个参与者发出 abort 通知，请求退出预备状态 | 
+| 协调者等待超时 | 同上 |
+
+
+![3PC回滚](../imgs/220708/3pc00.jpg)
+
+
+**第三阶段 docommit**
+
+如果第二阶段事务未中断，那么本阶段协调者将会依据事务执行返回的结果来决定提交或回滚事务，分为 3 种情况：
+
+| 第二阶段响应 | 步骤 | 
+| --- | ---|
+| 所有的参与者都能正常执行事务 | 1.向所有参与者提交commit <br/> 2.所有参与者在收到通知之后执行 commit 操作释放资源 <br/> 3.参与者向协调者反馈事务提交结果 |
+| 一个或多个参与者执行事务失败 | 协调者认为事务无法成功执行 <br/> 1.向所有参与者提交rollback <br/> 2.所有参与者执行rollback回滚 <br/> 3.参与者向协调者反馈事务回滚结果 |
+| 协调者等待超时 | 同上 |
+
+
+事务提交流程图：
+
+![3PC提交](../imgs/220708/3pc01.jpg)
+
+事务回滚流程图：
+
+![3PC回滚](../imgs/220708/3pc02.jpg)
+
+
+在本阶段如果因为协调者或网络问题，导致参与者迟迟不能收到来自协调者的 commit 或 rollback 请求，那么参与者将不会如两阶段提交中那样陷入阻塞，而是等待超时后继续 commit，相对于两阶段提交虽然降低了同步阻塞，但仍然无法完全避免数据的不一致
+
+{{%  pageinfo %}}
+
+**特点**
+
+- 降低了阻塞与单点故障：
+  - 参与者返回 CanCommit 请求的响应后，等待第二阶段指令，若等待超时/协调者宕机，则自动 abort，降低了阻塞；
+  - 参与者返回 PreCommit 请求的响应后，等待第三阶段指令，若等待超时/协调者宕机，则自动 commit 事务，也降低了阻塞；
+- 数据不一致问题依然存在
+  - 比如第三阶段协调者发出了 abort 请求，然后有些参与者没有收到 abort，那么就会自动 commit，造成数据不一致
+
+{{%  /pageinfo %}}
\ No newline at end of file
diff --git a/layouts/swagger/baseof.html b/layouts/ebooks/baseof.html
similarity index 86%
rename from layouts/swagger/baseof.html
rename to layouts/ebooks/baseof.html
index bf7baad..56b3d87 100644
--- a/layouts/swagger/baseof.html
+++ b/layouts/ebooks/baseof.html
@@ -3,7 +3,7 @@
   <head>
     {{ partial "head.html" . }}
     <title>{{ if .IsHome }}{{ .Site.Title }}{{ else }}{{ with .Title }}{{ . }} | {{ end }}{{ .Site.Title }}{{ end }}</title>
-    <link rel="stylesheet" type="text/css" href="{{ "/css/swagger-ui.css" | relURL }}">
+    
   </head>
   <body class="td-{{ .Kind }}">
     <header>
@@ -16,9 +16,7 @@
             {{ partial "sidebar.html" . }}
           </aside>
           <aside class="d-none d-xl-block col-xl-2 td-sidebar-toc d-print-none">
-            {{ partial "page-meta-links.html" . }}
             {{ partial "toc.html" . }}
-            {{ partial "taxonomy_terms_clouds.html" . }}
           </aside>
           <main class="col-12 col-md-9 col-xl-8 pl-md-5" role="main">
             {{ if not .Site.Params.ui.breadcrumb_disable }}{{ partial "breadcrumb.html" . }}{{ end }}
diff --git a/layouts/swagger/list.html b/layouts/ebooks/list.html
similarity index 100%
rename from layouts/swagger/list.html
rename to layouts/ebooks/list.html
diff --git a/layouts/swagger/single.html b/layouts/ebooks/single.html
similarity index 100%
rename from layouts/swagger/single.html
rename to layouts/ebooks/single.html