依赖管理：go mod tidy
问题：dial tcp 172.217.24.17:443: i/o timeout
1
2
go env -w GO111MODULE=on
go env -w GOPROXY=https://goproxy.cn,direct
https://phantomvk.github.io/2020/03/03/go/
https://www.jianshu.com/p/760c97ff644c
依赖管理：go mod tidy
问题：dial tcp 172.217.24.17:443: i/o timeout
1
2
go env -w GO111MODULE=on
go env -w GOPROXY=https://goproxy.cn,direct
https://phantomvk.github.io/2020/03/03/go/
https://www.jianshu.com/p/760c97ff644c
