XSL：计数无法正常工作 - 我的XPath问题？ [英] XSL:Number count not working as expected -- Issue with my XPath?

问题描述

这里是XML

 < row& 
< cell> blah blah< / cell> 
 
< check> 
< option /> 
< option /> 
< option /> 
< option /> 
< option /> 
< option /> 
< / check> 
< / row> 
 

以下是XSL

 < xsl：template match =row> 
< xsl：variable name =inputLevel> 
< xsl：number count =optionlevel =anyfrom =。/> 
< / xsl：variable> 
 
< xsl：value-of select =$ inputLevel/> 
< / xsl：template> 
  

我得到的是0。 http://www.w3schools.com/XPath/xpath_syntax.asp 说。表示当前节点。不应该返回6吗？

Edit1：我想在任何级别寻找选项标签，而不仅仅是检查。

如果你想计数后代

如果你想计算后代选项，您不应使用 xsl：number ，但：

 < xsl：variable name =inputLevelselect =count（.// option）> 
  




Here's the XML

<row>
    <cell>blah blah</cell>

    <check>
        <option/>
        <option/>
        <option/>
        <option/>
        <option/>
        <option/>
    </check>
</row>

Here is the XSL

<xsl:template match="row">
    <xsl:variable name="inputLevel">
        <xsl:number count="option" level="any" from="."/>
    </xsl:variable>

    <xsl:value-of select="$inputLevel"/>
</xsl:template>

All I get is "0". http://www.w3schools.com/XPath/xpath_syntax.asp says "." means the current node. Shouldn't it be returning "6"?

Edit1: I wanted to look for option tags at ANY level, not just check. Should have explained but the option tags could exist at any level below

解决方案

If you want to count descendant options you shouldn't use xsl:number but:

<xsl:variable name="inputLevel" select="count(.//option)"> 

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