(This course explains how to write targeted crawlers. First explain the basic principles of crawlers, and use Python's Requests module and regular expressions to write simple crawlers. Next, use the Scrapy open source crawler framework and the Redis database to improve crawler efficiency. Finally, it will explain the crawling of dynamically loaded web content and the processing methods of some anti-crawling bug mechanisms.)
发表于 2023-2-18 12:18:22
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