基于 asyncio 和 aiohttp 的 Python3 异步爬虫框架。它具有容易上手、非阻塞、扩展性强等特点，实例代码： ```python from ruia import TextField, Item, Spider class HackerNewsItem(Item): target_item = TextField(css_select='tr.athing') title = TextField(css_select='a.storylink') class HackerNewsSpider(Spider): start_urls = ['https://news.ycombinator.com/news?p=1'] async def parse(self, response): async for item in HackerNewsItem.get_items(html=response.html): yield item if __name__ == '__main__': HackerNewsSpider.start() ```