count被作为查询字段时

$list = Db::name(‘shop_collection‘)
    ->alias(‘a‘)
    ->where($where)
    ->leftjoin(‘bojie_shop_goods b‘, ‘a.goods_id = b.id‘)
    ->leftjoin(‘bojie_shop_goods_class c‘, ‘a.class_id = c.id‘)
    ->leftjoin(‘bojie_shop_goods_order_pay d‘, ‘a.goods_id = d.goods_id‘)
    ->leftjoin(‘bojie_shop_list e‘, ‘b.shop_id = e.id‘)
    ->field(‘a.url, b.title, b.img, b.price, c.class_name, count(d.id) count, e.shop_name‘)
    ->group(‘a.id‘)//有group时被分组，没有时只能查询一条数据
    ->page($page[‘pageNum‘],$page[‘numPerPage‘])
    ->order(‘a.id‘, ‘desc‘)
    ->select();