Unverified50% confidenceFactExact time
Python中常用的requests库封装了HTTP请求过程，使发起HTTP请求只需一行代码即可完成
1
Sources
50%
Confidence
Long-term
Relevance
7/8/2026
First Seen
Sources
零基础Python爬虫入门：工作原理、核心流程与法律红线详解
bilibiliPyCharm安装激活教程7/4/2026
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UnverifiedPython的requests库负责发起网络请求，BeautifulSoup或lxml负责解析HTML文档结构80% similarUnverifiedPython的httpx库原生支持HTTP/2，而requests库默认仅支持HTTP/1.173% similarPartially Verifiedrequests库是Python中最流行的HTTP客户端库，对底层urllib3进行了封装73% similarUnverifiedPython爬虫完整流程分为三步：发起请求获取HTML、解析筛选提取数据、存储数据69% similarPartially VerifiedPython的requests库和Scrapy框架是网络爬虫最常用的工具68% similar
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