擅长:python、mysql、java
<p>这对你有帮助</p>
<pre><code>import xml.etree.ElementTree as ET
tree = ET.parse('items.xml') # Path to input file
root = tree.getroot()
for prop in root.iter('.//*[@class="SvgMarker"]/prop'):
prop.set('v', str(float(prop.get('v')) * 1.5))
tree.write('out.xml', encoding="UTF-8")
</code></pre>
<p>参考号:<a href="https://docs.python.org/2/library/xml.etree.elementtree.html#example" rel="nofollow noreferrer">https://docs.python.org/2/library/xml.etree.elementtree.html#example</a></p>