Python protobuf 简单示例

GitHub仓库地址：https://github.com/protocolbuffers/protobuf
Google文档：https://developers.google.com/protocol-buffers/
https://docs.qq.com/doc/DV2t5TWhvZ21Eend6

GitHub release页面下载：

将win64解压，bin目录添加进入环境变量，可以使用protoc.exe来生成相关类

解压protobuf-python-3.20.1.zip，进入其python目录
运行命令

python setup.py build
python setup.py install

安装成功后可以正常导入 import google.protobuf

编写proto文件

syntax = "proto3";
message msg{
    string sign = 3;
}

命令来编译

protoc –python_out=. yrx.proto

会生成yrx_pb2.py

之后编写序列化代码

import yrx_pb2


def write():
    msg = yrx_pb2.msg()
    msg.sign = "24012a9b6a812b96"
    result = msg.SerializeToString()
    print("encode: ",result)
    with open("pro.bin", "wb") as f:
        f.write(result)


def read():
    result = 0
    with open("pro.bin", "rb") as f:
        result = f.read()
    msgb = yrx_pb2.msg()
    msgb.ParseFromString(result)
    print("decode: ",msgb.sign)


write()
read()

运行结果

encode:  b'x1ax1024012a9b6a812b96'
decode:  24012a9b6a812b96