pip install protobuf # 编写格式文件 toutiao_dmp.proto syntax = "proto2"; package toutiao.dmp; option java_outer_classname = "DmpDataProto"; message DmpData { repeated IdItem idList = 1; } message IdItem { optional uint32 timestamp = 1; required DataType dataType = 2; required string id = 3; repeated string tags = 4; enum DataType { IMEI