擅长:python、mysql、java
<p>这是<a href="http://lxml.de/cssselect.html" rel="nofollow">clearly documented at the lxml website</a></p>
<pre><code>from lxml.etree import fromstring
from lxml.cssselect import CSSSelector
sel = CSSSelector('.zzAggregateRatingStat')
text = '<span><span class="zzAggregateRatingStat">3</span></span>'
doc = fromstring(text)
el = sel(doc)[0]
print el.text
</code></pre>