如何为 XML 文件编写 xPath

How do I write xPath for the XML file

如何为下面的 XML 编写 xPath 以从字段“fname”中获取数据 -- 其中字段 'Department' 包含数据“IT” -- ID 和 ImgID 相同。

-- 下面是示例 XML ----

[示例 XML][1]

<?xml version="1.0" encoding="UTF-8"?>
<dbdump>
<database name="testDatabase" schemaVer="1.0.0">
    <table name="testTable">
        <row>
            <field name="ID">1</field>
            <field name="lname">Smith</field>
            <field name="fname">Tom</field>
            <field name="department">HR</field>
            <field name="ImgID">0</field>
        </row>
        <row>
            <field name="ID">2</field>
            <field name="lname">K</field>
            <field name="fname">John</field>
            <field name="department">IT</field>
            <field name="ImgID">2</field>
        </row>
        <row>
            <field name="ID">3</field>
            <field name="lname">D</field>
            <field name="fname">Sam</field>
            <field name="department">IT</field>
            <field name="ImgID">3</field>
        </row>
        <row>
            <field name="ID">4</field>
            <field name="lname">J</field>
            <field name="fname">Tina</field>
            <field name="department">IT</field>
            <field name="ImgID">0</field>
        </row>
    </table>
</database>
</dbdump>

稍微更精确和高效的 XPath:

/dbdump/database/table/row[field[@name="department"] = "IT"][field[@name="ID"] = field[@name="ImgID"]]/field[@name="fname"]/text()