Yu Zhang
我是张宇，一名自动驾驶领域的算法工程师，平日里与 SLAM 和机器人打交道。喜欢探究各式各样的事物，也习惯把成长和思考的过程记录下来。这个个人网站像一个安静的角落，安放着我的技术笔记与职业体悟。希望这里能为你带来一点帮助，或者哪怕只是一瞬间的灵感。
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Notes
View all →- 百度与国内搜索 SEOMay 23, 2026
面向国内搜索引擎（百度、搜狗、360、神马、必应中国）的 SEO 实操手册 —— 百度搜索资源平台账号与验证、ICP 备案的流程与影响、资源提交工具（普通收录 / 快速收录 / API push）、国内特有的排名因素（简体中文信号、服务器位置、HTTPS、移动适配、JS 重度页面）、其他国内引擎差异、以及面向中文受众的关键词研究与外链渠道。配套 **K2B-8-2 SEO 基础** 与 **K2B-8-3 Google 与国际 SEO**。
- SEO FundamentalsMay 23, 2026
Search-engine-agnostic SEO — the discovery → crawl → index → rank pipeline, the universal failure modes (no sitemap, blocked `robots.txt`, accidental `noindex`, thin home page, indexed preview deployments), and the Next.js App Router + Vercel implementation: `app/sitemap.ts`, `app/robots.ts`, per-page `metadata` API, canonical URLs, JSON-LD, mobile/Core Web Vitals.
- SEO for Google and International SearchMay 23, 2026
Webmaster-side workflow for Google, Bing, and other international engines — Google Search Console setup (domain vs URL prefix property, TXT-record verification via Cloudflare, sitemap submission, URL Inspection, Coverage/Performance reports, Crawl stats), Bing Webmaster Tools (import from GSC + IndexNow), Yandex Webmaster briefly, and the hreflang strategy for English-default bilingual sites.
- Abstract Factory PatternMay 22, 2026
Create families of related objects without naming concrete classes — one factory object per family variant; covers classic GoF form, modern template/policy alternatives, and the trade-off vs Factory Method.
- Adapter PatternMay 22, 2026
Wrap an incompatible interface so client code can talk to it through the interface it already expects — object-adapter via composition or class-adapter via multiple inheritance.