PbootCMS判断有无子菜单各种条件判断和标签

{pboot:nav} <li><a href="[nav:link]">{nav:name}</a>   {pboot:if('[nav:soncount]' > 0)}   <div>     {pboot:2nav parent="[nav:scode]"}     <a href="[2nav:link]">{2nav:name}</a>     {/pboot:2nav}   </div>   {/pboot:if} </li> {/pboot:nav}