$ git push
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@ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @
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IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
SHA256:8/qFkzDvXVxUC6Wl0bFcVqQR+Yp/2LuuuNthrwggoNs.
Please contact your system administrator.
Add correct host key in /c/Users/David/.ssh/known_hosts to get rid of this message.
Offending ECDSA key in /c/Users/David/.ssh/known_hosts:1
RSA host key for gitee.com has changed and you have requested strict checking.
Host key verification failed.
fatal: Could not read from remote repository.
Please make sure you have the correct access rights and the repository exists.
换个机器，同一账号，why？