从列表字典里选取自己想要字典

    def get_goodslist(self):

        value_list = []
        page_size = 10
        page_no = 1

        while True:
            goods_list = self.yz_api_goods.get_goods_list(page_no=page_no, page_size=page_size)

            keys = (
            'item_id', 'title', 'price', 'item_type', 'item_no', 'created_time', 'update_time', 'origin')
            for out_dict in goods_list:
                tmp = {}
　　　　　　　　　　字典添加字典.
                for key in keys:
                    tmp[key] = out_dict[key]
                value_list.append(tmp)



            if len(goods_list) < page_size:
                break
            else:
                page_no += 1

        return value_list