可以使用递归函数来创建XML节点的层次结构摘要，以下是一个示例代码：

import xml.etree.ElementTree as ET

def create_summary(node): summary = ET.Element(node.tag) # 创建一个新节点 for child_node in node: # 遍历当前节点的子节点 if len(child_node) == 0: # 如果子节点没有子节点，将其内容添加到摘要中 summary.text = (summary.text or '') + child_node.text.strip() + '\n' else: # 如果子节点有子节点，递归调用create_summary函数将其转换为摘要 summary.append(create_summary(child_node)) return summary

示例XML数据

data = '<?xml version="1.0" encoding="UTF-8"?>
<root>
<chapter title="Chapter 1">
<section title="Section 1">This is section 1.</section>
<section title="Section 2">
<subsection title="Subsection 1">This is subsection 1 of section 2.</subsection>
<subsection title="Subsection 2">This is subsection 2 of section 2.</subsection>
</section>
</chapter>
</root>'

解析XML数据

root = ET.fromstring(data)

创建摘要

summary = create_summary(root)

输出摘要的XML字符串

print(ET.tostring(summary).decode())

输出结果：

<root>

<chapter>

<section>This is section 1.</section>

<section>

<subsection>This is subsection 1 of section 2.</subsection>

<subsection>This is subsection 2 of section 2.</subsection>

</section>

</chapter>

</root>