public static function getMainTypeId()
 {
     if (self::$maintype_id == 0) {
         //从数据库获取
         $result = self::getMainTypeIdFromDB();
         if ($result[0]) {
             self::$maintype_id = $result[1];
         } else {
             return array(false, "从数据库查找主分类失败");
         }
     }
     return array(true, self::$maintype_id);
 }
    if ($result[ismaintype]) {
        echo "是主分类<br/>";
    } else {
        echo "是次分类(非主分类)<br/>";
    }
} else {
    echo $result['message'] . "<br/>";
}
echo "2、删除主分类关联信息:";
/*
 * INSERT INTO `gcdiscuzforum_forum_gc_excellent_thread`( `tid`, `type_id`, `rate`) VALUES (3,55,NUll),(3,56,NULL);
 * 56是主分类
 * 55是次分类
 */
$type_id = 56;
$result = CenterGradation::deleteAllThreadWithMainType($type_id);
print_r($result);
echo "<br/><font color=#FF0004'>测试文件运行完成</font>";
//include template("excellent_shared/excellent_setting");
/*
function getOneTypeTreeNodeFormDB($type_id){
	$type_tree=array();
	$sql = "SELECT `type_id`,`type_name` FROM `gcdiscuzforum_forum_gc_type_thread` WHERE `type_level`=0";
	$sqldata=DB::query($sql);
	$data=DB::fetch($sqldata);
	$trans=0;
	$type_tree[$trans]=new DataTreeNode(NULL,$data['type_id'],$data['type_name'],0);
	//获取子节点
	$sql = "SELECT b.father_type_id AS \'father_type_id\',\n"
    . "	c.type_id AS \'type_id\',c.type_name as \'type_name\', \n"
    . " c.type_level AS \'type_level\' \n"