现在提示这个不支持?
alinx@alinxdeMacBook-Pro proto % protoc -I . helloworld.proto --go_out=plugins=grpc:.
--go_out: protoc-gen-go: plugins are not supported; use 'protoc --go-grpc_out=...' to generate gRPC
See https://grpc.io/docs/languages/go/quickstart/#regenerate-grpc-code for more information.