擅长:python、mysql、java
<p>我建议使用lxml</p>
<pre><code>import lxml.etree
doc = lxml.etree.parse(test.xml)
count = doc.xpath('count(//out)')
</code></pre>
<p>您可以查找有关XPATH<a href="http://infohost.nmt.edu/tcc/help/pubs/pylxml/web/xpath.html" rel="nofollow">here</a>的更多信息。</p>