Keep Thriving https://joak.org/ 2026-08-16T20:31:09+00:00 https://joak.org/ https://joak.org/_media/favicon.ico text/html 2026-08-13T03:47:25+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:mysql?rev=1786592845&do=diff MySQL * Official site: mysql.com MariaDB * Official site: mariadb.org * 与 mysql 的差异: <https://www.skeema.io/blog/2023/05/10/mysql-vs-mariadb-schema/> * 在root下刚安装完时，即可直接用 mysql 命令进入， mariadb 会自动检查当前系统用户是否为root. * 执行 sudo mysql_secure_installation text/html 2026-08-13T03:44:34+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:math:mathematical_analysis:chapter_1?rev=1786592674&do=diff 第一章 一些通用的数学概念及记号 * 点击返回 《数学分析》B.A.卓里奇 笔记 \(\S1\) 逻辑符号 1. 关系与括号 * $\lnot$ “非”;　$\land$ “与”;　$ \lor $ “或”;　$ \Rightarrow $ “蕴含”;　$ \Leftrightarrow $ “等价” 2. 关于证明的注记 * 典型的数学论断具有 \( A \Rightarrow B \) 这种形式，证明时建立一串蕴含关系，其中每个蕴含关系为公理或已证明断语\( A \land (A \Rightarrow B) \Rightarrow B \)\( (A \lor \lnot A) \)\( \lnot(\lnot A) \Leftrightarrow A \)\(\blacktriangleleft\)\(\blacktriangleright\)\( := \)\( =: \)\[ \int_{a}^{b} f(x)dx := \lim_{\lambda(P)\rightarrow 0} \sigma(f,P,\xi) \]\(M\)\( P(M)\)\(… text/html 2026-08-13T03:21:06+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:lang:cplusplus:effective_modern_cplusplus?rev=1786591266&do=diff Effective Modern C++ * 笔记 导言 * 本书涉及 C++98, C++03, C++11, and C++14。 C++03与C++98相比只有技术细节差异，本书统称为C++98; C++14是对C++11的补充，本书统称为C++11; 本书提及“C++14”时则仅指C++14， 提及 text/html 2026-08-13T01:41:42+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/wiki:test?rev=1786585302&do=diff 本wiki的配置与测试代码 需求 * 为方便编写与阅读数学笔记，强烈需求这种插件： 在定义或定理时，对定义的或定理的关键字进行标记， 在后续出现同样的关键词时，鼠标移上去时，能显示标记时的内容。 \(x \in \mathbb{R} \)\(x\)$a^2 + b^2 = c^2$\(1+2+\dots+n=\frac{n(n+1)}{2}\)$$ \frac{d}{dx}\left( \int_{0}^{x} f(u)\,du\right)=f(x) $$\[ \sin A \cos B = \frac{1}{2}\left[ \sin(A-B)+\sin(A+B) \right] \]\begin{align*} e^x & = 1 + x + \frac{x^2}{2} + \frac{x^3}{6} + \cdots \\ & = \sum_{n\geq 0} \frac{x^n}{n!} \end{align*}… text/html 2026-08-12T01:51:01+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:git?rev=1786499461&do=diff GIT 一、为什么要使用代码版本控制系统 * 历史版本的说明、存储与备份 * 便于团队协同合作 * 便于查看代码差异、变动历史 二、GIT 与 SVN 的区别 * GIT 为分布式的，GIT 工程每个副本都是一个备份；而 SVN 是非分布式的，依赖一个中心服务器；$(git verify-pack -v .git/objects/pack/*.idx | sort -k 3 -n | tail -5 | awk '{print$ text/html 2026-08-06T08:57:01+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:mirrors?rev=1786006621&do=diff 镜像站 不错的镜像站合集，整理 by --- Oakfire 2020/12/29 11:02 好文：<https://gitee.com/gsls200808/chinese-opensource-mirror-site> <https://github.com/SUSTech-CRA/chinese-opensource-mirror-site> 商业公司 * 网易：<http://mirrors.163.com/> * 搜狐：<http://mirrors.sohu.com/> * 阿里云官方镜像站：<https://developer.aliyun.com/mirror/> * 腾讯软件云：<https://mirrors.tencent.com/> * docker hub 镜像： <https://cloud.tencent.com/document/product/1207/45596> * 华为开源镜像站：<https://mirrors.huaweicloud.com/> * 平安云开源镜像：… text/html 2026-07-30T06:36:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:math:%E5%B9%B3%E9%9D%A2%E5%AF%86%E9%93%BA?rev=1785393381&do=diff 平面密铺 * 知乎上非常好的一篇文,by 陆zz 五边 text/html 2026-06-01T07:37:57+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:lang:c?rev=1780299477&do=diff C Lang * C99 标准：<http://www.open-std.org/JTC1/SC22/WG14/www/standards> * <https://www.open-std.org/JTC1/SC22/WG14/www/docs/n1256.pdf> * C11-C18 标准：<https://www.iso.org/standard/74528.html> * <https://stefansf.de/c-quiz/> Lib * <http://libcello.org/> Feature * 柔性数组: Flexible Array Member(FAM) is a feature introduced in the C99 standard of the C programming language. * <https://d3s.mff.cuni.cz/legacy/~holub/c_features.html> * Why does calloc exist: calloc 比 malloc+memset 的两… text/html 2026-05-28T08:36:19+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:others:tools?rev=1779957379&do=diff 有用工具集 * awesome 汇总：awesome list 文章 * 每月20美元的建站技术栈 在线工具 * Bookmark.style: online site, 制作链接分享图片 * Assembler Simulator: online site, github repo, 8位x86 CPU 模拟器 * TheWall online site, 地球云图 * ZoomEarth online site, 温度地图等交互式天气地图 * text/html 2026-05-18T08:48:30+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:it:windows?rev=1779094110&do=diff Windows * github Awesome-Windows * win蓝屏问题排查 * 关于win用户权限 * sessions desktops and windows stations * 给 localhost 添加CA证书 * WinObj 系统对象查看器，可查看串口 * Validation OS 基于win11的轻量级命令行工具OS * 桌面动态壁纸原理 * WSL 连接 USB 设备, usbipd-win Tips * ping 侦测保活同时记录：powershell 执行 ping -t 192.168.1.1 | Foreach{"{0} - {1}" -f (Get-Date),$_} > D://work/ping-log.txt text/html 2026-05-11T07:21:34+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/public:ai:llm?rev=1778484094&do=diff LLM(Large Language Model) * 大语言模型 * 大模型的原理：<https://ngrok.com/blog/prompt-caching/> * How LLMs Actually Work 本地部署 llama.cpp * llama.cpp:LLM inference in C/C++ LM Studio * <https://lmstudio.ai/> : 这个似乎比 Ollama 更好用 llm * <https://anthonylewis.com/2025/06/01/run-your-own-ai/> Ollama * Ollama 官网 * github repo * 支持的大模型列表：<https://ollama.com/library> * 博客：介绍和使用 环境变量设置 text/html 2026-05-07T09:11:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:lang:lang_list?rev=1778145067&do=diff 程序语言列表 C++ * C++ C# * CSharp * 简介：C#是微软推出的一种基于.NET框架的、面向对象的高级编程语言。C#由C语言和C++派生而来，继承了其强大的性能，同时又以.NET框架类库作为基础，拥有类似Visual Basic的快速开发能力。C#由安德斯·海尔斯伯格主持开发，微软在2000年发布了这种语言。 text/html 2026-05-07T08:12:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:it:thingsboard?rev=1778141523&do=diff Thingsboard * Official site: thingsboard.io * Ubuntu 安装:官方文档 V3.2 代码解析 架构 * official doc * 前端架构为 Angular * UI: angular material * 存储：ngrx * 后端架构为 Java Spring, Spring Boot * PostgresQL 目录结构 * 顶层目录 . ├── LICENSE ├── README.md ├── license-header-template.txt ├── pom.xml ├── img --仅一张readme的logo图片 ├── application --主程序，JAVA, Spring, Spring Boot └── target --编译最终结果目录，包含jar包与deb包 ├── common --通用的JAVA代码, 包括数据信息结构，消息… text/html 2026-05-07T08:02:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:actor_model?rev=1778140938&do=diff Actor model * Actor model * Erlang 语言采用了此模型。 概念 Actor model 推崇的哲学是“一切皆是 Acotr”，这与面向对象编程的“一切皆是对象”类似。 Actor 是一个运算实体，响应接收到的消息，相互间是并发的： text/html 2026-05-07T07:47:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:lang:cplusplus?rev=1778140069&do=diff C++ Useful C/C++ related websites. * The C++ Standards Committee - ISOCPP * Standard C++ 8-) - News, Status & Discussion about Standard C++. * CppCon - The C++ Conference. * C++ reference - C++98, C++03, C++11, C++14 reference. * CPlusPlus.com - The C++ Resources Network. * Meeting C++ * 编译器支持情况 Useful C/C++ related weblogs. * text/html 2026-05-07T07:46:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:it:tools_and_codes?rev=1778139981&do=diff Tools and Codes This page is Deprecated 在 google 或者 github 里直接搜索 awesome nodejs, 这里 nodejs可以替换成你想要搜索的语言或平台，就可以得到一个github社区贡献的对应的工具库收集 repo. 比如：awesome-nodejs awesome 汇总： text/html 2025-12-30T09:17:13+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Apaper.png&ns=public%3Amath&rev=1767086233&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:paper.png?w=500&amp;h=500&amp;tok=05fdc8" alt="paper.png" loading="lazy" width="500" height="500" /> text/html 2025-12-30T09:10:01+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Aturtle.png&ns=public%3Amath&rev=1767085801&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:turtle.png?w=500&amp;h=500&amp;tok=536fc2" alt="turtle.png" loading="lazy" width="500" height="500" /> text/html 2025-12-30T09:10:00+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Aspectre.png&ns=public%3Amath&rev=1767085800&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:spectre.png?w=500&amp;h=500&amp;tok=22771e" alt="spectre.png" loading="lazy" width="500" height="500" /> text/html 2025-12-30T09:09:24+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Asimple-tilling.png&ns=public%3Amath&rev=1767085764&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:simple-tilling.png?w=500&amp;h=500&amp;tok=862a64" alt="simple-tilling.png" loading="lazy" width="500" height="500" /> text/html 2025-12-30T09:08:31+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Amath%3Ahat-marked.png&ns=public%3Amath&rev=1767085711&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:math:hat-marked.png?w=500&amp;h=500&amp;tok=ccac95" alt="hat-marked.png" loading="lazy" width="500" height="500" /> text/html 2025-04-23T03:00:32+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Agvcp_3.png&ns=public%3Ait&rev=1745377232&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:it:gvcp_3.png?w=500&amp;h=500&amp;tok=92bf05" alt="gvcp_3.png" loading="lazy" width="500" height="500" /> text/html 2025-04-23T03:00:32+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Agvcp_2.png&ns=public%3Ait&rev=1745377232&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:it:gvcp_2.png?w=500&amp;h=500&amp;tok=d6282e" alt="gvcp_2.png" loading="lazy" width="500" height="500" /> text/html 2025-04-23T03:00:32+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Agvcp_1.png&ns=public%3Ait&rev=1745377232&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:it:gvcp_1.png?w=500&amp;h=500&amp;tok=432e50" alt="gvcp_1.png" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:29:41+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3A%E6%A0%87%E5%87%86iso-iec14496-15-2017.docx&ns=public%3Ait&rev=1713839381&tab_details=history&media_do=diff&do=media <img src="https://joak.org/lib/images/fileicons/svg/docx.svg" alt="标准iso-iec14496-15-2017.docx" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:18:58+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Aiso_iec_14496-15_2013_avcff.pdf&ns=public%3Ait&rev=1713838738&tab_details=history&media_do=diff&do=media <img src="https://joak.org/lib/images/fileicons/svg/pdf.svg" alt="iso_iec_14496-15_2013_avcff.pdf" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:18:22+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Aiso_iec_14496-14-2020.pdf&ns=public%3Ait&rev=1713838702&tab_details=history&media_do=diff&do=media <img src="https://joak.org/lib/images/fileicons/svg/pdf.svg" alt="iso_iec_14496-14-2020.pdf" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:16:17+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Aiso_iec_14496-12_2015.pdf&ns=public%3Ait&rev=1713838577&tab_details=history&media_do=diff&do=media <img src="https://joak.org/lib/images/fileicons/svg/pdf.svg" alt="iso_iec_14496-12_2015.pdf" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:13:00+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3Aa23fa461c3944c798e5e51355a976832.png&ns=public%3Ait&rev=1713838380&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:it:a23fa461c3944c798e5e51355a976832.png?w=500&amp;h=500&amp;tok=fe28bd" alt="a23fa461c3944c798e5e51355a976832.png" loading="lazy" width="500" height="500" /> text/html 2024-04-23T02:11:36+00:00 oakfire (oakfire@undisclosed.example.com) https://joak.org/?image=public%3Ait%3A426ff9a882f84a3e8503e94c5fe6d7c9.png&ns=public%3Ait&rev=1713838296&tab_details=history&media_do=diff&do=media <img src="https://joak.org/_media/public:it:426ff9a882f84a3e8503e94c5fe6d7c9.png?w=500&amp;h=500&amp;tok=021e5e" alt="426ff9a882f84a3e8503e94c5fe6d7c9.png" loading="lazy" width="500" height="500" />