1. 上传
http://www.changchenghao.cn/n/673396.html
2.如果认证成功，还是无法上传
改用SSH连接
https://blog.csdn.net/yychuyu/article/details/80186783
3.
$ git push --set-upstream origin master
The authenticity of host 'github.com (140.82.114.3)' can't be established.
ED25519 key fingerprint is SHA256:+DiY3wvvV6TuJJhbpZisF/zLDA0zPMSvHdkr4UvCOqU.
This key is not known by any other names
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'github.com' (ED25519) to the list of known hosts.
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.
请参考
https://blog.csdn.net/qq_41999617/article/details/83691324