Linux主机如何实现无需输入密码的远程登录或脚本(2)

def main():
    ip = '127.0.0.1'
    user = 'test'
    passwd = 'test@passwd'
    cmd = 'df -h'
    remote_ssh(ip, user, passwd, cmd)

if __name__  == '__main__':
    main()