ssh-keygen -t rsa -C "your_email@youremail.com"
然后输入github上的密码
Enter passphrase (empty for no passphrase): [Type a passphrase]
Enter same passphrase again: [Type passphrase again]
The authenticity of host 'github.com (207.97.227.239)' can't be established.
这个时候输入你在github上设置的密码
然后在C:\Users\user\.ssh找到id_rsa.pub，用记事本打开，把里面的内容复制到github账户设置里面的key里，
再使用下面的命令测试是否成功
ssh -T git@github.comThe authenticity of host 'github.com (207.97.227.239)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)?
看到这个内容，说明就成功了。
Hi username!
You've successfully authenticated, but GitHub does not provide shell access.