中通快递的，单个就可以，多个就不行

{"cargo":{"count":2,"weight":5.5,"space_x":30.5,"space_y":20,"space_z":20,"detail_list":[{"name":"商品1","count":1},{"name":"商品2","count":1}]}}

返回结果是

{"errcode":9300501,"errmsg":"delivery logic fail rid: 61820143-0b553a4b-7a0e93e0","delivery_resultcode":20006,"delivery_resultmsg":"货物数量、重量、尺寸不正确或者不合理","waybill_data":[]}