github地址：https://github.com/protocolbuffers/protobuf
完成相关配置:下载工具包，pip安装protobuf模块

protobuf正向开发流程：
1.编写addressbook.proto文件
2.用protoc.exe编译输出addressbook_pb2.py文件： protoc --python_out=. addressbook.proto
3.另写一个demo.py,导入addressbook_pb2.py，编写序列化和反序列化代码，运行输出

基于官方示例，加入个人认为常用到的

以下为 addressbook.proto 文件

syntax = "proto3";

package aaa;

message AddressBook {
  repeated Person people = 1;
}

message Person {
  string name = 1;
  int32 id = 2;
  string email = 3;
  repeated PhoneNumber phones = 4;      
     repeated Money money = 5;             
      bool isMan = 6;
  Mapsss maps = 7;                      
  repeated int32 nums = 8;              
     repeated string strs = 9;            
      bytes byte=10;

  message Money {
    float ch = 1;
    float us = 2;
    float uk = 3;
    float ja=4;
  }

  enum PhoneType1111 {
    MOBILE11 = 0;
    HOME11 = 1;
    WORK11 = 2;
  }


}


enum PhoneType {
  MOBILE = 0;
  HOME = 1;
  WORK = 2;
}
message PhoneNumber {
  string number = 1;
  PhoneType type = 2;
}

message Mapsss {
  map<int32, int32> mapint = 1;
  map<string, string> mapstr = 2;
}

以下为 demo.py 文件

#!/usr/bin/env python
# -*- coding: UTF-8 -*-


import addressbook_pb2


addressBook = addressbook_pb2.AddressBook()


def Serialize_To_String():
    person = addressBook.people.add()
    person.id = 111
    person.name = '看雪论坛'
    person.email = '00000001314250000@qq.com'
    person.isMan = True
    person.nums.append(1)
    person.nums.extend([2,3])
    person.strs.append('1111')
    person.strs.extend(['2222', '3333'])
    person.byte=bytes('嘻嘻哈哈',encoding='utf-8')

    phoneNumber = person.phones.add()
    phoneNumber.number = '12300000322222'
    phoneNumber.type = addressbook_pb2.Person.MOBILE11
    # # 效果等于上 3 行
    # person.phones.add(number='12300000322222', type=addressbook_pb2.Person.MOBILE11)

    person.money.add(ch=13.14,us=5.2,uk=2.5,ja=6.23)

    maps = person.maps
    maps.mapint[4444] = 5555
    maps.mapint[6666] = 7777
    maps.mapint[8888] = 9999

    maps.mapstr['str1']='str111111111'
    maps.mapstr['str2']='str222222222'

    SerializeToString = addressBook.SerializeToString()
    print(SerializeToString)
    with open('addressBook.bin', 'wb') as f:
        f.write(SerializeToString)
    return SerializeToString


def Parse_From_String(SerializeToString):
    # with open('addressBook.bin', mode='rb') as f:
    #     addressBook.ParseFromString(f.read())

    addressBook.ParseFromString(SerializeToString)
    print('MOBILE:', addressbook_pb2.MOBILE)
    for person in addressBook.people:
        print('id:', person.id)
        print('name:', person.name)
        print('email:', person.email)
        print('isMan:', person.isMan)
        print('nums:', person.nums)
        print('strs:', person.strs)
        print('byte:', person.byte.decode())
        for pn in person.phones:
            print('number:', pn.number)
            print('type(MOBILE11):', pn.type)
        for my in person.money:
            print('ch:', my.ch)
            print('us:', my.us)
            print('uk:', my.uk)
            print('ja:', my.ja)
        mapint = person.maps.mapint
        for key in mapint:
            print(key, mapint[key])
        mapstr = person.maps.mapstr
        for key in mapstr:
            print(key, mapstr[key])


if __name__ == "__main__":
    # 序列化
    serializeToString = Serialize_To_String()
    print('========================================\n========================================')
    # 反序列化
    Parse_From_String(serializeToString)

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