xlst for-each - 将类添加到 1st、4th、7th、10th、..项目

Question

对于xslt-1.0，如何修改下面的代码，以便它将third类添加到第一，第四，seveth等inner-div元素中？

<div id="myDiv">
    <xsl:for-each select="key('category',  $var1)">
        <div class="inner-div">
            sometext
        </div>
    </xsl:for-each>
</div>

所以它是：

<div id="myDiv">
        <div class="inner-div third">
            sometext
        </div>
        <div class="inner-div">
            sometext
        </div>
        <div class="inner-div">
            sometext
        </div>
        <div class="inner-div third">
            sometext
        </div>
        <div class="inner-div">
            sometext
        </div>
        <div class="inner-div">
            sometext
        </div>
        <div class="inner-div third">
            sometext
        </div>
</div>

谢谢。

Answer 1

你需要对position()进行模算术：

<div id="myDiv">
    <xsl:for-each select="key('category',  $var1)">
        <div>
            <xsl:attribute name="class">
                <xsl:text>inner-div</xsl:text>
                <xsl:if test="(position() mod 3) = 1"> third</xsl:if>
            </xsl:attribute>
            sometext
        </div>
    </xsl:for-each>
</div>