go env -w GO111MODULE=off
go env -w GOPATH=/home/go/goproject/
https://www.golangroadmap.com/question_bank/golang.html#%E5%88%B7%E9%A2%98%E8%AE%B0%E5%BD%95
go install -v github.com/golang/protobuf/proto@latest
go install -v github.com/golang/protobuf/protoc-gen-go@latest
go test xxx_test.go
go test -v -run TestXXX$
-v 显示详细的流程
-run 支持正则表达式 TestXXX$ 只执行TestXXX函数
需要安装 protoc 和 protoc-gen-go
protoc --go_out=. *.proto