有关SSH

补充：Windows下Git Bash下git的使用，详情请看https://blog.csdn.net/chenxueshanBlog/article/details/78915338

1）下面来看操作是出现的第一个错误：

$ git remote add origin git@github.com:Jan864/newrep.git
fatal: remote origin already exists.

出现这一错误，只需一个命令就可以解决：

git remote rm origin

github常见错误可以看：https://blog.csdn.net/dengjianqiang2011/article/details/9260435

2）操作时出现的第二个错误：

$ git push -u origin master
ERROR: Repository not found.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.