Claude Code Tutorial

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

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

Unlike writing a few snippets 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 exercise code
Want to use AI to improve development efficiency and engineering skills
Independent developers or engineers who need to maintain projects long-term
Technical leads or core team members

Prerequisites

Basic programming skills (able to read and write simple code)
Basic code reading and comprehension skills
Familiar with common development tools (editor, command line)
Willing to understand code rather than relying entirely on AI

Claude Code vs. Web Claude

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