Unverified50% confidenceFactExact time
HTTP/1.1于1997年引入持久连接（Keep-Alive），HTTP/2于2015年引入多路复用和HPACK头部压缩，HTTP/3于2022年正式标准化并将传输协议切换为基于UDP的QUIC
1
Sources
50%
Confidence
Long-term
Relevance
7/8/2026
First Seen
Sources
Learning Python Web Scraping from Scratch: How It Works, the Full Workflow, and Legal Boundaries
bilibiliPython全套学习7/6/2026
Related Claims
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