go grpc

https://godoc.org/google.golang.org/grpc

go get google.golang.org/grpc

go get -a github.com/golang/protobuf/protoc-gen-go

protoc --go_out=plugins=grpc:. helloworld.proto

----------------------------------------------------------------------

安装gogoprotobuf：

     1 go get github.com/gogo/protobuf/proto

     2 go get github.com/gogo/protobuf/protoc-gen-gogo

     3 go get github.com/gogo/protobuf/gogoproto

     4 go get github.com/gogo/protobuf/protoc-gen-gofast