golang || 环境准备（centos7）
https://blog.csdn.net/qq_60271706/article/details/126532110
go env -w GO111MODULE=on
go env -w GOPROXY=https://goproxy.cn,direct
https://blog.csdn.net/qq_60271706/article/details/126532110
go env -w GO111MODULE=on
go env -w GOPROXY=https://goproxy.cn,direct