使用Xpath根据同一节点的两个条件检查XML段，并返回true

<library>
  <book id="101">
    <title>Learning XML</title>
    <author>Erik T. Ray</author>
  </book>
  <book id="102">
    <title>XPath Tutorial</title>
    <author>Jay Banerjee</author>
  </book>
</library>

//book[@id='101' and title='Learning XML']

from lxml import etree

xml_data = """
<library>
  <book id="101">
    <title>Learning XML</title>
    <author>Erik T. Ray</author>
  </book>
  <book id="102">
    <title>XPath Tutorial</title>
    <author>Jay Banerjee</author>
  </book>
</library>
"""

tree = etree.fromstring(xml_data)
xpath_expr = "//book[@id='101' and title='Learning XML']"

result = tree.xpath(xpath_expr)

if result:
    print("条件满足，返回true")
else:
    print("条件不满足，返回false")