擅长:python、mysql、java
<p>没有任何外部库-请参阅下面的</p>
<pre><code>import xml.etree.ElementTree as ET
xml = '''<parent>
<some>
<child>text</child>
<child>text</child>
<child>text</child>
</some>
</parent>'''
root = ET.fromstring(xml)
print(f'Number of child elements is {len(root.findall(".//child"))}')
</code></pre>
<p>输出</p>
<pre><code>Number of child elements is 3
</code></pre>