Ubuntu Protobuf installation (test works)

installation process

1. Download software

   Download the version you want to install: https://github.com/protocolbuffers/protobuf
   download source code compilation:
   
   system environment: Ubuntu16 (other versions are also available), Protobuf-3.6.1

2. Compile the source code

   cd protobuf
   
   # 当使用 git clone 下来的工程中带有 submodule 时，
   # submodule 的内容并不会自动下载下来，此时，只需执
   # 行如下命令,就可以下载，避免文件下载不全
   git submodule update --init –recursive
   
   ./autogen.sh
   ./configure
   make
   sudo make install
   sudo ldconfig # refresh shared library cache.
   

    protoc --version（编译完成，查看版本，表示成功安装）
   

   

   After the compilation is complete, the installation location of the relevant files is shown in the following figure:

   /usr/local/lib: static library and dynamic library
   

   /usr/local/bin: executable files
   

   /usr/local/include/google: header files
   
   The content of the google folder is shown in the figure below, which contains related header files