小白使用github和git，碰到了点小问题，求教

Question

是啥意思啊

Answer 1

The first one is that you have already added it to the remote. You can use git remote -v to see the current information.
The second one seems to be that it has not been verified. Check whether the locally generated public has been added to the github account settings. key

Answer 2

1. It means that you have already added the origin remote and cannot add it again. If you want to delete it, just git remote remove origin and then execute the add command.
Generally speaking, if you execute git clone xxx to create a project, you do not need to set up remote.

2. This is ssh signature verification. If this appears, it means that this is a new signature and that you have not connected to this server before. Asking if you want to add the signature of this server to the known host list now. Just enter yes and press Enter.