功能演示：代码、图片、视频与目录的完整文章

import asyncio
import aiohttp

async def fetch_data(url: str) -> dict:
    """异步获取数据"""
    async with aiohttp.ClientSession() as session:
        async with session.get(url) as resp:
            return await resp.json()

async def main():
    data = await fetch_data("https://api.example.com/data")
    print(f"Received: {data}")

asyncio.run(main())

class SensorReader {
  constructor(pin) {
    this.pin = pin;
    this.history = [];
  }
  
  async read() {
    const value = await analogRead(this.pin);
    this.history.push({ time: Date.now(), value });
    return value;
  }
  
  getAverage() {
    return this.history.reduce((s, d) => s + d.value, 0) / this.history.length;
  }
}