/* 导航列表 */
public function _nav($tag, $content){
trace($tag);
trace($content);
trace("end");
$field = empty($tag['field']) ? 'true' : $tag['field'];
$tree = empty($tag['tree'])? false : true;
$parse = $parse = 'field('.$field.')->where("status=1")->order("sort")->select();';
if($tree){
$parse .= '$__NAV__ = list_to_tree($__NAV__, "id", "pid", "_");';
}
$parse .= '?>';
$parse .= $content;
$parse .= ' ';
// trace($parse);
return $parse;
}
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