freemaker遍历嵌套list的map

<#if disMap?exists>
                    <#list disMap?keys as key> 
                         
                                     <#if ((disMap[key]))??&&((disMap[key])?has_content)>
                                         <#list (disMap[key]) as dis>
                                             ${(dis.typename)!}
                                         </#list>
                                         <#if !((disMap[key])?has_content)><div class='clear'></div></#if>
                                     </#if>
                             
                    </#list>
 </#if>