客户评论。客户对服务进行打分，具体场景可参照淘宝、京东进行设计，服务器接收到客户评论数据后，将数据写入文本文件。 -Customer reviews. Rate the customer service, the specific scene can refer Taobao, Jingdong design, server receives the customer reviews the data, the data is written to a text file.