<h:commandLink id="Delete" action="listCards" actionListener="#{cardBoBean.deleteCardByID}" rendered="EL表达式真值">
<h:outputText value="#{messages['global_del']}" />
<f:param id="deleteId" name="id" value="#{card.id}" />
</h:commandLink><h:outputText value="无效" rendered="EL表达式假值" style="color:red"/>