def get_goods_list(goods_resp, _format):
    goods_list = []
    if _format == 'json':
        for goods_cate in goods_resp:
            goods_list = goods_list + goods_cate['goods']
    if _format == 'xml':
        for goods_cate in goods_resp['cate']:
            if isinstance(goods_cate['goods']['item'], dict):
                goods_list.append(goods_cate['goods']['item'])
            else:
                goods_list = goods_list + goods_cate['goods']['item']
    return goods_list