擅长:python、mysql、java
<p><a href="https://doc.scrapy.org/en/latest/topics/api.html#scrapy.crawler.Crawler.crawl" rel="nofollow noreferrer">crawl</a>接受参数,您可以在spider的<a href="https://doc.scrapy.org/en/latest/topics/spiders.html#scrapy.spiders.Spider.from_crawler" rel="nofollow noreferrer">from_crawler</a>内使用它们。你知道吗</p>