提取 src 属性
我想做的事：
这个 HTML 代码：
<img class="poster lazyload lazyloaded"
data-src="https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg"
data-srcset="https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg 1x, https://image.tmdb.org/t/p/w188_and_h282_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg 2x"
alt="Hitman"
src="https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg"
srcset="https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg 1x, https://image.tmdb.org/t/p/w188_and_h282_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg 2x"
data-loaded="true">
我想提取“data-src”或“src”（或包含图像 URL 的每个属性）属性值。
我试过的：
Posters = soup.find("img")["src"]
print(Posters)
但这显然会返回每个 img 标签的所有值，因此每个链接都与海报无关。输出：
https://www.themoviedb.org/assets/2/v4/logos/v2/blue_short-8e7b30f73a4020692ccca9c88bafe5dcb6f8a62a4c6bc55cd9ba82bb2cd95f6c.SVG
https://www.themoviedb.org/assets/2/v4/logos/v2/blue_short-8e7b30f73a4020692ccca9c88bafe5dcb6f8a62a4c6bc55cd9ba82bb2cd95f6c.SVG
对于海报，我指的是（检查此 URL https://www.themoviedb.org/search?&query=Hitman：）电影海报。
概括
我想在类“.lazyloaded”中提取属性内的值
我希望一切都清楚。谢谢。
慕田峪73311741回答
-
饮歌长啸
您可以尝试过滤class：posters = soup.find_all("img", {"class": "lazyloaded"})for poster in posters: print(poster["src"])请参阅文档：https ://www.crummy.com/software/BeautifulSoup/bs4/doc/#searching-by-css-class编辑：更多解释假设您有以下文件demo.html：<!DOCTYPE html><html><head> <meta charset="UTF-8"> <title>Title</title></head><body><img class="logo" src="https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg"><img class="poster lazyload lazyloaded" data-src="https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg" data-srcset="https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg 1x, https://image.tmdb.org/t/p/w188_and_h282_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg 2x" alt="Hitman" src="https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg" srcset="https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg 1x, https://image.tmdb.org/t/p/w188_and_h282_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg 2x" data-loaded="true"></body></html>您可以像这样解析“海报”图像：import iofrom bs4 import BeautifulSoupwith io.open("demo.html", encoding="utf8") as fd: soup = BeautifulSoup(fd.read(), features="html.parser")posters = soup.find_all("img", {"class": "lazyloaded"})for poster in posters: print(poster["src"])你得到：https://image.tmdb.org/t/p/w94_and_h141_bestv2/3qlQM9KP1cyvNfPChA9rASASdHr.jpg
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