wuchaochao@wuchaochao-ThinkPad-E450c:~$ ssh -T git@github.comssh_exchange_identification: Connection closed by remote hostgithub的公钥已经配置过，而且 MaxStartups 15:30:100也已经调大了求解
仅供参考：https://idreamshen.github.io/posts/github-connection-closed/