擅长:python、mysql、java
<p>你需要移动这些线</p>
<pre><code>result = ET.SubElement(results,"result")
student = ET.SubElement(result,"student")
assignment = ET.SubElement(result,"assignment")
score = ET.SubElement(result,"score")
</code></pre>
<p>进入<code>for</code>循环。否则你只是一遍又一遍地添加相同的<code>result</code>。</p>