\$label";
     $foldertpl="\$label ";
     $ul_class="dropdown-menu" ;
     $li_class="" ;
     $style="nav navbar-nav";
     $showlevel=6;
     $dropdown='dropdown';
     echo sp_get_menu("main",$effected_id,$filetpl,$foldertpl,$ul_class,$li_class,$style,$showlevel,$dropdown);
     ?>

删除了

data-toggle='dropdown'

已回复：手机端交互无法浏览子分类