爬虫：提取网页里的内容
可以帮我看看梨视频上的这个视频怎样提取到它的下载链接吗，我用几种方法试了一下，提取的内容都是空的，大家可以帮我看看吗，网页看着挺简单的，但我就是没搞出来
谢谢了，能用多种提取方式更好了，我看看哪里错了
下面的代码是用正则提取的，也不知道哪错了
import requests
import re
url= "https://www.pearvideo.com/video_1767755"
headers = {
"User-Agent":"Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Mobile Safari/537.36",#防盗链:溯源，处理反扒，referer
"Referer": "https://www.pearvideo.com/video_1752210"
}resp = requests.get(url,headers = headers)
scrUrl = re.compile(r'<div class="img.*?<video.*?scr=(?P<newurl>.*?)',re.S)
result = scrUrl.finditer(resp.text)
for it in result:
print(it.group("newurl")) 在AJAX里：
#!/usr/bin/env python3
import requests
def main():
url = 'https://www.pearvideo.com/videoStatus.jsp'
headers = {'user-agent': 'firefox',
'Referer': 'https://www.pearvideo.com/video_1767755',
'X-Requested-With': 'XMLHttpRequest'}
params = {'contId': '1767755',
'mrd': '0.3777282613482572'}
r = requests.get(url, headers=headers, params=params)
print(r.text)
print('=' * 100)
print(r.json()['videoInfo']['videos']['srcUrl'])
if __name__ == '__main__':
main()
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