A、XSLT,即用于转换XML文档的语言规范 B、XPath,即用于在文档中进行导航的路径语言 C、XHTML,即可扩展超文本置标语言(Extensible HyperText Markup Language) D、XSL-FO,即用于格式化XML文档的语言
A、<xsl:if test="//stsuuser:AttributeList/stsuuser:Attribute[attr=39;homepage39;]"> B、<xsl:if test="//stsuuser:AttributeList/stsuuser:Attribute[@name=39;homepage39;]"> C、<xsl:if-exists="//stsuuser:AttributeList/stsuuser:Attribute/custom:Homepage"> D、<xsl:if-exists="//stsuuser:AttributeList/stsuuser:Attribute[@name=39;homepage39;])>