Freemarker语法收集

1. 取数组第一项

<#if subModelList?? && (subModelList?size > 0)>
     <#assign subFirst = subModelList[0]>
     <#if subFirst??>
         <@list.column entityAttrList=subFirst.entityAttrList isSub=true />
     </#if>
</#if>