给定以下示例:
<?xml version="1.0" encoding="UTF-8"?>
<Patients>
<patientRole>
<id extension="996-756-495" root="2.16.840.1.113883.19.5"/>
<id extension="775-756-495" root="2.16.840.1.113883.14.6"/>
<patient>
<name>
<given>Henry</given>
<family>Levin</family>
</name>
<administrativeGenderCode code="M" codeSystem="2.16.840.1.113883.5.1"/>
<birthTime value="19320924"/>
</patient>
<providerOrganization>
<id root="2.16.840.1.113883.19.5"/>
<name>Good Health Clinic</name>
</providerOrganization>
<admissionTime value="2012030111:32"/>
</patientRole>
<patientRole>
<id extension="65" root="2.16.840.1.113883.3.933"/>
<patient>
<name>
<given>Paul</given>
<family>Pappel</family>
</name>
<administrativeGenderCode code="M" codeSystem="2.16.840.1.113883.5.1"/>
<birthTime value="19551217"/>
</patient>
<providerOrganization>
<id extension="84756-11241-283-OPTD-3322" root="1.2.3.4.5.6.1.8.9.0"/>
<name> Dr.med. Hans Topp-Glucklich</name>
</providerOrganization>
<admissionTime value="201201152200"/>
</patientRole>
<patientRole>
<id extension="800001" root="2.16.840.1.113883.19.5"/>
<patient>
<name>
<given>JEANNE</given>
<family>PETIT</family>
</name>
<administrativeGenderCode code="F" codeSystem="2.16.840.1.113883.5.1"/>
<birthTime value="19480105"/>
</patient>
<providerOrganization>
<id root="2.16.840.1.113883.19.5"/>
<name>Good Health Clinic</name>
</providerOrganization>
<admissionTime value="20120101T22:00"/>
</patientRole>
</Patients>
我将如何为以下内容编写 X-Path 表达式:
男性患者的姓氏(性别代码=“M”)
非常感谢任何帮助我是 XML/Xpath 的新手,我尝试了多种方法,但它没有产生我需要的东西。