错误背景：
1、CentOS7上面作为运行环境，Coding在本机的windows环境
2、在windows上安装sublime 3，然后保存代码通过xftp保存到centos7虚机上面。
3、Centos重装系统后，把代码保存的目录调整了一下
4、然后时间sublime 下载新目录的代码，然后就报错了
错误内容：
Connecting to SFTP server "www.xxxx.club" as "root" ............... failure (Host key verification failed)
The SSH host key has changed. This could indicate a potential security breach, or that the domain you are connecting to recently moved servers.
If you are confident this is not a security breach you can delete the old host key and try again.
1. Win XP: Start > Run > regedit.exe
Win Vista/7: Start > regedit
2. Expand to HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\SshHostKeys and delete the entry including @22:www.xxxx.club
原因：因为sublime 在windows的注册表中把www.xxxx.club的值注册，不能重新注册。
错误解决办法：
1、ctrl + R ，输入 regedit
2、删除HKEY_CURRENT_USER\Software\SimonTatham\PuTTY\SshHostKeys下的@22:www.xxxx.club
