ClaudeCode 深度实战：AI 辅助编程的代码生成、重构与测试自动化

# macOS / Linux (x86_64/arm64)
curl -fsSL https://claude.ai/code/install.sh | sh

# 或通过 npm（若偏好）
npm install -g @anthropic/claude-code

export ANTHROPIC_API_KEY="sk-ant-..."
claude --version

claude generate --file user_api.py \
  "使用 FastAPI 实现用户 CRUD，包含 GET /users, GET /users/{id}, POST /users, PUT /users/{id}, DELETE /users/{id}，使用 SQLite 存储，字段：id(int), name(str), email(str), created_at(datetime)。"

from fastapi import FastAPI, HTTPException, status
from pydantic import BaseModel, EmailStr
from datetime import datetime
import sqlite3
import os

app = FastAPI()
DB_PATH = os.getenv("DB_PATH", "./users.db")

class UserCreate(BaseModel):
    name: str
    email: EmailStr

class UserResponse(UserCreate):
    id: int
    created_at: datetime

def get_db():
    conn = sqlite3.connect(DB_PATH)
    conn.row_factory = sqlite3.Row
    return conn

@app.on_event("startup")
def init_db():
    conn = get_db()
    conn.execute("CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT NOT NULL, email TEXT UNIQUE NOT NULL, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP)")
    conn.close()

@app.get("/users", response_model=list[UserResponse])
def list_users():
    conn = get_db()
    rows = conn.execute("SELECT id, name, email, created_at FROM users").fetchall()
    conn.close()
    return [dict(row) for row in rows]
# ... 其他端点略

import pytest
from httpx import AsyncClient
from user_api import app

@pytest.fixture
async def client():
    async with AsyncClient(app=app, base_url="http://test") as ac:
        yield ac

@pytest.mark.asyncio
async def test_create_user(client):
    resp = await client.post("/users", json={"name": "Alice", "email": "alice@example.com"})
    assert resp.status_code == 200
    data = resp.json()
    assert data["name"] == "Alice"
    assert data["email"] == "alice@example.com"
    assert "id" in data

claude edit --file order.py --lines 45-245 \
  "将 calculate_total 拆分为 calculate_subtotal, apply_discount, apply_tax 三个函数，保持原有逻辑不变，添加类型注解。"

claude edit --file user_api.py --lines 40-50 \
  "为 GET /users 增加分页参数 limit 和 offset，默认 limit=100，使用 SQL LIMIT/OFFSET 实现。"

@app.get("/users", response_model=list[UserResponse])
def list_users(limit: int = 100, offset: int = 0):
    conn = get_db()
    rows = conn.execute("SELECT ... FROM users LIMIT ? OFFSET ?", (limit, offset)).fetchall()
    # ...

# .pre-commit-config.yaml
- repo: local
  hooks:
    - id: claude-review
      name: claude review
      entry: claude review --file
      language: system
      files: \.(py|js|ts)$
      pass_filenames: true