方法一(推荐)privatefunctionrunSSH($cmdstr){//服务器信息$host='172.18.0.1';$user='root';$passwd='yB1TYzIZhWrn19zV';//链接远程服务器$connection=@ssh2_connect($host,22);if(!$connection){return'';die('Connectionfailed.');}//可否通过密码连接$auth_methods=ssh2_auth_none($connection,$user);if(!in_array('password',$auth_methods)){r