why function is not called in xslt?

问题

I am trying to call function .But it not display out .here is my code https://plnkr.co/edit/TN1BN5Yao5Z63RDcBGlN?p=preview

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

   <xsl:template name="dosomething">
        <xsl:text>A function that does something</xsl:text>
    </xsl:template>

    <xsl:call-template name="dosomething"/>

</xsl:stylesheet>

回答1:

xsl:call-template cannot be at the top level of your stylesheet. It must only be used within a template body, for example:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

   <xsl:template name="dosomething">
        <xsl:text>A function that does something</xsl:text>
    </xsl:template>

   <xsl:template match="/">
        <xsl:call-template name="dosomething"/>
    </xsl:template>


</xsl:stylesheet>

来源：https://stackoverflow.com/questions/41033174/why-function-is-not-called-in-xslt