GoModules终极入门https://eddycjy.com/posts/go/go-moduels/2020-02-28-go-modules/             https://www.cnblogs.com/xingzheanan/p/15700302.html1. revisionv0.0.0:unknownrevisionv0.0.0goget-ugithub.com/uudashr/gopkgs/