vi /etc/profile
export GOROOT=/opt/modules/GoLang/go
export GOPATH=/opt/modules/GoLang/gopath
export PATH=$PATH:$GOROOT/bin
source /etc/profile
go get -u github.com/hyperledger/fabric-ca/cmd/...
https://blog.youkuaiyun.com/qq_28410283/article/details/81432063