如何通过id查看xml节点？

Question

我有这个XML文件：

<?xml version="1.0" encoding="UTF-8"?> 
<product name="civil"> 
<day>Moonday</day> 
    <dataseries> 
    <data timepoint="3h"> 03:00 </data> 
    <data timepoint="6h"> 06:00 </data> 
    <data timepoint="9h"> 09:00 </data> 
    <data timepoint="12h"> 12:00 </data> 
    <data timepoint="15h"> 15:00 </data> 
    <data timepoint="18h"> 18:00 </data> 
    <data timepoint="21h"> 21:00 </data> 
    <data timepoint="24h"> 00:00 </data> 
    </dataseries> 

如何显示交替的节点？通过这种方式：3h，9h，15h ...类似于：

<xsl:for-each select="product/dataseries/data" timepoint="@6h"> 

但这段代码是错误的。

Answer 1

尝试以下

<xsl:for-each select="product/dataseries/data[@timepoint='6h']> 

在方括号可能有也更复杂的条件（例如用或运营商，一些aritmetics等），选择您需要的节点。