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这是我的XML文件（Input.xml文件）将XML文件转换成另一个XML文件：使用XSLT，但是代码的一部分不工作
<root>
<_shards>
<total>5</total>
<failed>0</failed>
<successful>5</successful>
</_shards>
<hits>
<hits>
<_index>PIB</_index>
<_type>SearchTech</_type>
<_source>
<extension>
<X-Parsed-By>org.apache.tika.parser.DefaultParser</X-Parsed-By>
<google-site-verification>jP1bIfjuuyZUYfTkYc_O6ZlTHxCm07voTDcMk72Z8oQ
</google-site-verification>
<Content-Location>http://www.example.com/big-data-search-managed-services-questions
</Content-Location>
<resourceName>http://www.example.com/big-data-search-managed-services-questions
</resourceName>
<X-UA-Compatible>IE=edge</X-UA-Compatible>
<viewport>width=device-width, initial-scale=1, maximum-scale=1
</viewport>
<Content-Encoding>UTF-8</Content-Encoding>
<format-detection>telephone=no</format-detection>
</extension>
<keywords>keywords-NOT-PROVIDED</keywords>
<secureFlag>false</secureFlag>
<description>How do you make sure your search and big data
applications are well-maintained? How to free IT staff's time
to focus more on business goals? Watch our expert address the top 5
managed services questions asked by customers.
</description>
<connectorSpecific>
<discoveredBy>http://www.example.com/enterprise-search-case-studies
</discoveredBy>
<xslt>false</xslt>
<pathFromSeed>LL</pathFromSeed>
<md5>WVBM5NDACLWRN4OSXRCQUA5RJA</md5>
</connectorSpecific>
<title>Do I Need Managed Services for My Search and Big Data
Applications?
</title>
<url>http://www.example.com/big-data-search-managed-services-questions
</url>
<UD>http://www.example.com/big-data-search-managed-services-questions
</UD>
<displayurl>http://www.example.com/big-data-search-managed-services-questions
</displayurl>
<UE>http://www.example.com/big-data-search-managed-services-questions
</UE>
<submitTime>2016-07-21T22:55:00+0000</submitTime>
<T>Do I Need Managed Services for My Search and Big Data
Applications?
</T>
<sourceType>heritrix</sourceType>
<U>http://www.example.com/big-data-search-managed-services-questions
</U>
<sourceName>PIB</sourceName>
</_source>
<_id>http://www.example.com/big-data-search-managed-services-questions
</_id>
<_score>1</_score>
</hits>
<hits>
<_index>paintitblack</_index>
<_type>SearchTech</_type>
<_source>
<extension>
<X-Parsed-By>org.apache.tika.parser.EmptyParser</X-Parsed-By>
<resourceName>http://www.example.com/ytPopup/aWcqZS7pbJQ
</resourceName>
</extension>
<keywords>keywords-NOT-PROVIDED</keywords>
<secureFlag>false</secureFlag>
<description>description-NOT-PROVIDED</description>
<connectorSpecific>
<discoveredBy>http://www.example.com/search-big-data-videos
</discoveredBy>
<xslt>false</xslt>
<pathFromSeed>LL</pathFromSeed>
<md5>2QOYZWMPACZAJ2MABGMOZ6CCPY</md5>
</connectorSpecific>
<title>Title-NOT-PROVIDED</title>
<url>http://www.example.com/ytPopup/aWcqZS7pbJQ</url>
<UD>http://www.example.com/ytPopup/aWcqZS7pbJQ</UD>
<displayurl>http://www.example.com/ytPopup/aWcqZS7pbJQ
</displayurl>
<UE>http://www.example.com/ytPopup/aWcqZS7pbJQ</UE>
<submitTime>2016-07-21T22:56:22+0000</submitTime>
<newContent>newContent-NOT-PROVIDED</newContent>
<sourceType>heritrix</sourceType>
<U>http://www.example.com/ytPopup/aWcqZS7pbJQ</U>
<sourceName>PIB</sourceName>
</_source>
<_id>http://www.example.com/ytPopup/aWcqZS7pbJQ</_id>
<_score>1</_score>
</hits>
<total>1036</total>
<max_score>1</max_score>
</hits>
<took>3</took>
<timed_out>false</timed_out>
</root>
这是我的XSLT（Convert.XSLT）：
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:fn="http://www.w3.org/2005/xpath-functions"
exclude-result-prefixes="xs fn">
<xsl:output method="xml" encoding="UTF-8" byte-order-mark="no"
indent="yes" />
<xsl:template match="/">
<GSP>
<xsl:attribute name="VER">
<xsl:value-of select="3.2" />
</xsl:attribute>
<xsl:for-each select="root">
<TM>
<xsl:value-of select="(floor(took) div floor(1000))" />
</TM>
<RES>
<M>
<xsl:value-of select="floor(hits/total)" />
</M>
<xsl:for-each select="hits/hits">
<xsl:variable name="var1_resultof_first" as="node()"
select="_source" />
<R>
<xsl:attribute name="N">
<xsl:number format="0" level="single" />
</xsl:attribute>
<U>
<xsl:sequence
select="xs:string(xs:anyURI(fn:string($var1_resultof_first/U)))" />
</U>
<UE>
<xsl:sequence
select="xs:string(xs:anyURI(fn:string($var1_resultof_first/UE)))" />
</UE>
<UD>
<xsl:sequence
select="xs:string(xs:anyURI(fn:string($var1_resultof_first/UD)))" />
</UD>
<T>
<xsl:sequence select="fn:string($var1_resultof_first/T)" />
</T>
<Last-Modified>
<xsl:value-of select="substring-before(_source/submitTime,'T')" />
</Last-Modified>
<S>
<xsl:for-each select="highlight/newContent">
<xsl:sequence select="fn:string(.)" />
</xsl:for-each>
</S>
<MT>
<xsl:attribute name="N">X-Parsed-By</xsl:attribute>
<xsl:attribute name="V"><xsl:value-of select="extension/X-Parsed-By"/></xsl:attribute>
</MT>
</R>
</xsl:for-each>
</RES>
</xsl:for-each>
</GSP>
</xsl:template>
</xsl:stylesheet>
而且我的输出（与Output.xml）看起来是这样的：
<?xml version="1.0" encoding="UTF-8"?>
<GSP VER="3.2">
<TM>0.003</TM>
<RES>
<M>1036</M>
<R N="1">
<U>http://www.example.com/big-data-search-managed-services-questions</U>
<UE>http://www.example.com/big-data-search-managed-services-questions</UE>
<UD>http://www.example.com/big-data-search-managed-services-questions</UD>
<T>Do I Need Managed Services for My Search and Big Data Applications?</T>
<Last-Modified>2016-07-21</Last-Modified>
<S/>
<MT N="X-Parsed-By" V=""/>
</R>
<R N="2">
<U>http://www.example.com/ytPopup/aWcqZS7pbJQ</U>
<UE>http://www.example.com/ytPopup/aWcqZS7pbJQ</UE>
<UD>http://www.example.com/ytPopup/aWcqZS7pbJQ</UD>
<T/>
<Last-Modified>2016-07-21</Last-Modified>
<S/>
<MT N="X-Parsed-By" V=""/>
</R>
</RES>
</GSP>
你会看到我的输出标签MT和它的属性“V”不具有y值：
<MT N="X-Parsed-By" V=""/>
我的XSLT的下面部分不起作用。属性名称“V”不会提取我的XML元素“X-Parsed-By”的值。该计划的其他部分工作正常。
<MT>
<xsl:attribute name="N">X-Parsed-By</xsl:attribute>
<xsl:attribute name="V"><xsl:value-of select="extension/X-Parsed-By"/></xsl:attribute>
</MT>
我希望我的输出（与Output.xml）看起来像这样..
.....
<MT N="X-Parsed-By" V="org.apache.tika.parser.EmptyParser"/>
...
任何帮助，将不胜感激