//控制器方法
    public function index(){
        $data['logmin'] = isset($_GET['logmin'])?strtotime($_GET['logmin']):'';
        $data['logmax'] = isset($_GET['logmax'])?strtotime($_GET['logmax']):'';
        $data['title']  = isset($_GET['title']) ? trim($_GET['title']) : '';
    
        $list = Banners::listInfo($data);
        // $page = $list->render();
        $position = ['首页','新闻中心','走进为尔','明星产品','联系我们'];
        View::assign('position',$position);
        View::assign('list',$list);
        // View::assign('page',$page);
        return View::fetch();
    }
    //模型方法

        public static function listInfo($data){
        $where = [];
        if(!empty($data['title'])){
            $where[]=['title','like',"%".$data['title']."%"];
        }

        switch(true){
            case !empty($data['logmin'])&&!empty($data['logmax']):
                $where[]=['posttime','between',[$data['logmin'],$data['logmax']]];
            break;
            case !empty($data['logmin']):
                $where[]=['posttime','>=',$data['logmin']];
            break;
            case !empty($data['logmax']):
                $where[]=['posttime','<',$data['logmax']];
            break;
        }        
        $res =  Db::table('Banner')
        ->where($where)
        ->paginate(['list_rows'=>2,'query' => request()->param()]);
        return $res;
        }

thinkphpphp6 分页传参用的不是->paginate(2, false, ['query' => request()->param()]);

而是->paginate(['list_rows'=>2,'query' => request()->param()]);

这能解决做搜索功能的时候，搜索出来的数据分页后，按第二页又显示非搜索数据的问题