与FInd的链接

Question

有没有办法用python在网页上找到javascript链接？我使用机械化，但我找不到我想要的所有链接。我想要这个网站上图片的网址：http://500px.com/popular

Answer 1

只要使用BeautifulSoup，这就非常简单了：

js_links = soup.select('a[href^="javascript:"]')

这将选择具有值以javascript:开头的href属性的所有<a>元素

>>> from bs4 import BeautifulSoup
>>> soup = BeautifulSoup('''\
... <html><body>
... <a href="http://stackoverflow.com">Not a javascript link</a>
... <a name="target">Not a link, no href</a>
... <a href="javascript:alert('P4wned');">Javascript link (with scary message)</a>
... <a href="javascript:return False">Another javascript link</a>
... </body></html>
... ''')
>>> for link in soup.select('a[href^="javascript:"]'):
...     print link['href'], link.get_text()
... 
javascript:alert('P4wned'); Javascript link (with scary message)
javascript:return False Another javascript link