Claude Code Tutorial

Claude Code is an AI coding collaboration tool launched by Anthropic for developers.

Claude Code is not positioned as a chat tool, but rather as a tool that executes high-privilege, context-aware engineering tasks in local code repositories.

Unlike writing a few pieces of code in a chat window, Claude Code understands your entire project, can directly read your files, run tests, and modify code based on feedback.

Claude Code is not a code generator, but an AI programming partner that can read projects, understand context, and follow constraints.

Claude Code is an Agent (intelligent agent tool), not a Chat (chat tool).

Who is this tutorial for?

Have learned at least one programming language (e.g., JavaScript / Python / Java / Go)
Can understand basic syntax, functions, conditionals, and loops
Have written simple projects or practice code
Want to leverage AI to improve development efficiency and engineering capabilities
Independent developers or engineers who need to maintain projects long-term
Tech leads or core team members

Prerequisite skills

Basic programming skills (can read and write simple code)
Basic code reading and comprehension skills
Can use common development tools (editors, command line)
Willing to understand code rather than completely relying on AI

Claude Code vs. Web-based Claude

Feature	Claude Web / App	Claude Code (CLI)
Interaction method	Copy and paste code into the chat box	Operate directly in the terminal via commands
File access	Manually upload files	AutomaticRead/search the entire project directory
Execution capability	Text generation only	ExecuteShell commands, run tests, create files
Context awareness	Limited conversation context	Deep awareness of project structure and Git history