参考:https://www.cnblogs.com/xjnotxj/p/5845574.html
https://www.jianshu.com/p/04e9a885c5c8
最重要的是:ssh-add要执行,需要依赖于ssh-agent
ssh-agent -s
执行后可以通过 ssh-add -l
config文件的User为git
could not open a connection to your authentication agent则需要执行一下命令:ssh-agent bash