将 XML 字符串解码为结构体

<doc>
<subgroup1>
    <value1>abc123</value1>
    <value2>abc123</value2>
    <value3>abc123</value3>
    <value4>abc123</value4>
</subgroup1>
<subgroup2>
    <thetag mytagattr="abc123">
        <value1>abc123</value1>
        <value2>abc123</value2>
        <value3>abc123</value3>
        <value4 mytagattr="abc123">abc123</value4>
        <value5>abc123</value5>
        <value6>abc123</value6>
        <value7>abc123</value7>
        <value8>abc123</value8>
        <value9>abc123</value9>
    </thetag>
</subgroup2>
</doc>

type thetag struct {
    xmlname xml.name `xml:"subgroup2>thetag"`

    value1  string  `xml:"value1"`
    value2  string  `xml:"value2"`
}

error decoding message content: %!w(xml.UnmarshalError=expected element type <SubGroup2>TheTag> but have <DOC>)

type TheTag struct {
  XMLName xml.Name `xml:"DOC"`

  Value1 string `xml:"SubGroup2>TheTag>Value1"`
  Value2 string `xml:"SubGroup2>TheTag>Value2"`
}