更改 go包源
go env -w GO111MODULE=on
go env -w GOPROXY=https://goproxy.cn
下grpc-go包及pb包
go get google.golang.org/grpc
go get -u github.com/golang/protobuf/proto
go get -u github.com/golang/protobuf/protoc-gen-go
安装pb
下载地址: https://github.com/protocolbuffers/protobuf/releases
编译
protoc --go_out=. echo.proto
未完待续