public function changStatus($id, $status = -1)
{
//首先根据id值查找他的边界
$sql = "select lft,rght from shop_goods_category WHERE id={$id}";
$num = $this->query($sql);
//在根据它的边界查看在她边界内的所有id;
$sql = "select id from shop_goods_category WHERE lft>=" . $num[0]['lft'] . " AND rght<=" . $num[0]['rght'];
//得到所有的id
$rows = $this->query($sql);
$ids = array_column($rows, 'id');
//调用父类的方法执行
return parent::changStatus($ids, $status);
}