Git的使用

http://rogerdudler.github.io/git-guide/index.zh.html

http://www.cnblogs.com/wenber/p/3630921.html

Permission denied (publickey). 問題解決方法

原因是’You’ve probably not added a public key to your SSH keys.’
解決：用下面的命令生成public key

$ ssh-keygen -t rsa

複製 public key (id_rsa.pub) 到你賬戶的 list of SSH keys（Settings–>SSH and GPG keys–>New SSH key）, 再重新push.