如何获取给定行号的XML节点

import xml.etree.ElementTree as ET

def get_xml_node_by_line_number(xml_file, line_number):
    tree = ET.parse(xml_file)
    root = tree.getroot()

    return find_node_by_line_number(root, line_number)

def find_node_by_line_number(node, line_number):
    if node.sourceline == line_number:
        return node

    for child in node:
        found_node = find_node_by_line_number(child, line_number)
        if found_node is not None:
            return found_node

    return None

# 示例用法
xml_file = 'example.xml'
line_number = 10
target_node = get_xml_node_by_line_number(xml_file, line_number)

if target_node is not None:
    print("找到目标节点：", target_node.tag)
    # 进一步处理目标节点
else:
    print("未找到目标节点")