使用git
# 吧$GOPATH替换成自己的GOPATH
git clone https://github.com/golang/net.git $GOPATH\src\golang.org\x\net
git clone https://github.com/golang/text.git $GOPATH\golang.org\x\text
git clone https://github.com/grpc/grpc-go.git $GOPATH/src\google.golang.org\grpc