一、https://blog.csdn.net/wzlsunice88/article/details/80743160
注意错误点： 以下命令没有引号才能运行
shell > ssh-copy-id -i ~/.ssh/id_rsa.pub "-p 22 [email protected]"
https://blog.csdn.net/duxin_csdn/article/details/81708877
https://yq.aliyun.com/articles/665256
https://www.cnblogs.com/zhong-11/articles/9578912.html