What is the purpose of Protobuf?

The function of Protobuf is a data format used for serializing structured data, which can be used for storing, transmitting, and communicating data. It can describe the structure of data, define the types and fields of data, and generate corresponding code through compilers to achieve fast and efficient serialization and deserialization of data. Protobuf has characteristics such as efficiency, cross-platform, language independence, scalability, and good readability, and is widely used in various fields such as network communication, distributed systems, and data storage.