我有以下脚本尝试获取此网址:https://clips-media-assets.twitch.tv/178569498.mp4介于{“quality”:“1080”,“source”:“和a”之间,但我的正则表达式似乎不起作用
dt = """
<body>
<script>jQuery(window).load(function () {
setTimeout(function(){s
}, 1000);quality_options: [{"quality":"1080","source":"https://clips-media-assets.twitch.tv/178569498.mp4","frame_rate":60},{"quality":"720","source":"https://clips-media-assets.twitch.tv/AT-178569498-1280x720.mp4","frame_rate":60},{"quality":"480","source":"https://clips-media-assets.twitch.tv/AT-178569498-854x480.mp4","frame_rate":30},{"quality":"360","source":"https://clips-media-assets.twitch.tv/AT-178569498-640x360.mp4","frame_rate":30}]
});</script>
</body>
[download] 28.2x of 57.90MiB at 1.54MiB/s ETA 00:26
"""
pattern = re.compile(r'(?:\G(?!\A)|quality\":\"1080\",\"source\":\")(?:(?!\").)*', re.MULTILINE | re.DOTALL)
clipHTML = BeautifulSoup(dt, "html.parser")
scripts = clipHTML.findAll(['script'])
for script in scripts:
if script:
match = pattern.search(script.text)
if match:
email = match.group(0)
print(email)
答案 0 :(得分:4)
如果你坚持使用正则表达式来解决这个问题,请试试这个(如图here所示):
(?<=quality\":\"1080\",\"source\":\")[^\"]+(?=\")
我不是特别知道这个案例,但我必须提一下,通常用正则表达式解析JSON并不理想。当然,您可以使用( *)
向正则表达式添加动态编号的空格,但我认为最好使用JSON解析器。