git config --global user.name "your name"
git config --global user.email "your_email@youremail.com"
git clone URL
git remote add origin git@github.com:yourName/yourRepo.git
fatal: remote origin already exists.
可以删除原来的origin仓库
git remote rm origin
例如
git remote add origin1 git@github.com:yourName/yourRepo.git
原文:https://www.cnblogs.com/coder-tcm/p/11408920.html