Unverified50% confidenceFactExact time
爬虫解析数据的本质是遍历DOM树，通过CSS选择器或XPath语法定位目标节点，Python中的BeautifulSoup和lxml库专为解析DOM树设计
1
Sources
50%
Confidence
Long-term
Relevance
7/8/2026
First Seen
Sources
Python Web Scraping for Beginners: How It Works, Core Workflow, and Legal Red Lines Explained
bilibiliPyCharm安装激活教程7/4/2026
Related Claims
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