<?php
			$effected_id="main-menu";
		  	$filetpl="<a href=http://www.mamicode.com/‘/$href‘ target=‘/$target‘>/$label";
		  	$foldertpl="<a href=http://www.mamicode.com/‘/$href‘ target=‘/$target‘ class=‘dropdown-toggle‘ data-toggle=‘dropdown‘>/$label ";
		  	$ul_class="dropdown-menu" ;
		  	$li_class="" ;
		  	$style="nav";
		  	$showlevel=6;
		  	$dropdown=‘dropdown‘;
		  	echo sp_get_menu("main",$effected_id,$filetpl,$foldertpl,$ul_class,$li_class,$style,$showlevel,$dropdown);
		?>

function sp_get_menu($id="main",$effected_id="mainmenu",$filetpl="<span class=‘file‘>\$label</span>",$foldertpl="<span class=‘folder‘>\$label</span>",$ul_class="" ,$li_class="" ,$style="filetree",$showlevel=6,$dropdown=‘hasChild‘){
	$navs=F("site_nav_".$id);
	if(empty($navs)){
		$navs=_sp_get_menu_datas($id);
	}
	import("Tree");
	$tree = new \Tree();
	$tree->init($navs);
	return $tree->get_treeview_menu(0,$effected_id, $filetpl, $foldertpl,  $showlevel,$ul_class,$li_class,  $style,  1, FALSE, $dropdown);
}


function _sp_get_menu_datas($id){
	$nav_obj= M("Nav");
	$oldid=$id;
	$id= intval($id);
	$id = empty($id)?"main":$id;
	if($id=="main"){
		$navcat_obj= M("NavCat");
		$main=$navcat_obj->where("active=1")->find(); //挑选出主菜单
		$id=$main[‘navcid‘];
	}

	if(empty($id)){
		return array();
	}
        ......
}