zzh@ZZHPC:~/zd/Github/zimplebank$ go mod init github.com/ZhangZhihuiAAA/zimplebank go: creating new go.mod: module github.com/ZhangZhihuiAAA/zimplebank go: to add module requirements and sums: go mod tidy zzh@ZZHPC:~/zd/Github/zimplebank$ go mod tidy