05随笔
随笔
技术、折腾，和偶尔的生活。不追热点，只写亲手验证过的东西。
41 座城市之后 After 41 Cities
2010 年 8 月 11 日，上海。第一次一个人出远门，紧张得提前两小时到了车站。现在想想，那时候的自己真有意思。 August 11, 2010, Shanghai.First solo trip far from home, so nervous I arrived at the station two hours early. Looking back, my younger self was quite something.
建站记：hehang.me 是怎么搭起来的 Building hehang.me: How This Site Came Together
想有个地方放自己的东西：走过的路、写过的代码、写下的文字。试过 Notion，试过 GitHub Pages，总觉得差点意思。Notion 是别人的，GitHub Pages 太 geek。 I wanted a place for my own things: roads walked, code written, words recorded.Tried Notion, tried GitHub Pages — always felt slightly off. Notion belongs to someone else; GitHub Pages is too geeky.
本地优先的代价：DayLens 的数据是怎么存的 The Cost of Local-First: How DayLens Stores Data
做 DayLens 的时候，第一个决定就是：数据不出本机。不是因为有什么惊天秘密，而是觉得：我的时间花在哪了，这种数据没必要告诉任何云服务。 The first decision for DayLens: data never leaves the machine.Not because of earth-shattering secrets, but because where I spend my time is nobody's cloud business.
DayLens：把"今天做了什么"翻译成人话 DayLens: Translating "What Did I Do Today" Into Human Language
每天晚上，我都会想：今天到底干了什么？时间花在哪了？写代码用了几小时？刷手机又用了几小时？凭感觉估，永远不准。 Every evening, I wonder: what did I actually do today?Where did the time go? How many hours coding? How many scrolling my phone? Guessing by feel is never accurate.
给 IP 检测加上 AI：场景咨询是怎么做的 Adding AI to IP Detection: How Scenario Advice Works
多源数据聚合之后，信息是全了，但普通用户看不懂。ASN 是什么？BGP 走了哪条路？原生 IP 和广播 IP 有什么区别？这些概念对大多数人是黑话。 After multi-source aggregation, the information was complete — but ordinary users couldn't read it.What's an ASN? Which BGP route? What's the difference between native and broadcast IP? These concepts are jargon to most people.
IP Insight 开发手记：多源检测是怎么拼起来的 IP Insight Dev Notes: How Multi-Source Detection Comes Together
第一版很糙：一个窗口，一个按钮，一个结果区。点击检测后，用 `Promise.all` 同时请求三个 API，哪个先回来先显示。代码不到 200 行。 The first version was rough: one window, one button, one result area.Click detect, fire three APIs with `Promise.all`, display whichever returns first. Under 200 lines of code.
IP Insight：从一个想法到完整 IP 分析工具 IP Insight: From an Idea to a Complete IP Analysis Tool
事情的起因很简单：我想知道自己的网络出口到底在哪。用代理、换节点是常态，但每次都要打开好几个网站查 IP：一个看归属地，一个看流媒体解锁，一个看 ASN。信息散在各处，拼起来很麻烦。 It started with a simple need: I wanted to know where my network exit really was.Using proxies and switching nodes is routine, but each time I had to open several websites: one for geolocation, one for streaming unlock status, one for ASN. Information scattered everywhere, painful to piece together.
del-weibo：一键和过去的微博告别 del-weibo: Saying Goodbye to Old Weibo Posts, in One Click
人长大了，想清理一下年轻时发的微博。一条条删？几千条删到天荒地老。**根据项目记录推测**，作者（或者作者的朋友）有过这种需求，于是写了个脚本一次搞定。Tampermonkey（油猴）用户脚本，基于微博网页版官方接口： You grow up and want to clean up the Weibo posts from your younger days. Delete them one by one? Thousands of posts until the end of time. **Inferred**: the author (or a friend) had this need, so they wrote a script to do it all at once.A Tampermonkey userscript built on Weibo's official web APIs:
Navicat 中文助手：让英文报错说人话 Navicat Chinese Helper: Making English Errors Speak Human
在 Navicat 里执行 SQL 报错，信息面板里蹦出一行英文：`1146 - Table 'wh0524.t_user' doesn't exist`。老手扫一眼就懂，新手得先翻译再理解。**根据项目记录推测**，作者自己写 SQL 时被英文报错烦到了，决定做个小工具让它"说人话"。思路很巧：**外挂式独立小程序**。不截图识别（OCR 又慢又不准），不联网，直接读取 Navicat"信息"面板的文本。也不向 Navicat 写入任何内容——只读不写，干净。 You run SQL in Navicat, it errors, and the info panel spits out: `1146 - Table 'wh0524.t_user' doesn't exist`. Veterans get it at a glance; newcomers must translate first, understand second. **Inferred**: the author was annoyed by English errors while writing SQL and decided to make a little tool that "speaks human".A clever approach: **a standalone overlay mini-app**. No screenshot OCR (slow and unreliable), no network — it reads the text of Navicat's info panel directly. And it never writes an
DayLens 每日镜：把电脑活动翻译成"今天做了什么" DayLens: Translating PC Activity into "What I Actually Did Today"
每天下班的时候，你能说出自己今天到底做了什么吗？不是"很忙"，而是具体做了什么。**根据项目记录推测**，作者想要一个诚实的记录者：不评判、不打扰，只是把电脑上的活动翻译成一句话——"今天真正做过的事"。DayLens 的定位很克制：**本地优先、默认完全离线**。它记录前台软件使用时长、文件变化、浏览器访问概况、软件安装变化、微信接收文件，然后把成千上万条底层记录合并成容易理解的总结。 When you finish work each day, can you say what you actually did? Not "I was busy" — specifically what. **Inferred**: the author wanted an honest recorder: no judgment, no interruption, just translating computer activity into one sentence — "what I really did today".DayLens is deliberately restrained: **local-first, fully offline by default**. It records foreground app usage time, file changes, browser visit summaries, software install changes, and WeChat received files, then merges thousands of
网鉴 · IP Insight：把出口 IP 放在显微镜下 IP Insight: Putting Your Exit IP Under a Microscope
用代理、VPN 或者软路由的人，都有过这种时刻：想确认自己现在的出口 IP 到底是什么、在哪里、干不干净。单个检测网站只能给一个侧面，换几个网站又得手动一个个点开看。**根据项目记录推测**，作者想要的是一眼看清——打开一个软件，所有检测自动跑完，一份报告直接摆在面前。README 里写得很直白：把公网 IP 放到多个独立检测源下同时"体检"。自动打开检测网站、等待页面 JavaScript 真实执行、提取结果、统一成同一套数据模型，再做多源交叉验证和 AI 综合分析。 Anyone using a proxy, VPN, or soft router has had this moment: wanting to confirm what their exit IP really is, where it is, and whether it's clean. One detection site only shows one angle; checking several means opening them one by one. **Inferred from project records**: the author wanted it all at a glance — open one app, all checks run automatically, one report in front of you.The README states it plainly: put your public IP through a "checkup" across multiple independent detection sources. A