例如，我在下面有一个文档，用于收集=交付:{"doc":[{"docid":"15","deliverynum":"123","text":"txxxxxx","date":"2019-07-18T12:37:58Z"},{"docid":"16","deliverynum":"456","text":"txxxxxx","date":"2019-07-18T12:37:58Z"},{"docid":"17","deliverynum":"999","text":"txxxxxx","date":"2019-07-18T12:37:58Z"}],"id":"123","cancelle