Blog Categories
A collection of AI study notes, physics lecture notes, programming language tutorials, and development build logs. All content is available in both Chinese and English.
AI Study Notes
AI Study Notes
Embedding, LSTM, CNN/ResNet, Transformer, and more; use the language toggle in each article header.
Physics
Feynman Lectures Study Notes
From the microscopic world of atoms to the macroscopic structure of the universe, covering atomic theory, conservation of energy, gravitation, kinematics, and probability.
Computer Science
TypeScript Quick Tutorial
For experienced developers — quickly master TypeScript's type system, async programming, IO/network/database operations, and common toolchains.
PHP Quick Tutorial
Based on PHP 8.4 — web backend development: syntax basics, functions & OOP, PDO database, networking, file operations, and Composer toolchain.
Java Quick Tutorial
Based on Java 21 LTS — backend development: syntax basics, OOP, collections, IO & networking, JDBC database, and Maven build toolchain.
SQL Quick Tutorial
Based on MySQL 8, for experienced developers — covering basic queries, table design, JOINs, aggregate functions, index optimization and transaction management.
Next.js Quick Tutorial
Based on Next.js 15, for developers with React experience — covering App Router, SSR/SSG, data fetching, styling, API Routes, database integration, and deployment.
Dev Log
Development notes, build logs, and hands-on experience sharing.