#-*- coding:utf8 -*- import paramiko import re def check_active_ac(intervals=1):     client = paramiko.Transport(('主备的虚拟ip', 22))     # paramiko模块提供了ssh及sft进行远程登录服务器执行命令和上传下载文件的功能     client.connect(username='username', password='password')     # 打开一个通道     chan = client.open_session()     chan.settimeout(5)     # 获取终端     chan.get_pty()     # 激活终端，这样就可以登录到终端了，就和类似于xshell登录系统一样     chan.invoke_shell()     chan.recv(65535)     # 设置缓冲区大小     chan.send('show high-availability status \n')     # 执行'show high-availability status'命令，查看高可用状态     output = chan.recv(65535).decode()     print(output)     # 退出终端     chan.send('exit \n')     client.close()     search_string = output.split('\n')[7]     '''print('\n')'''     '''print("4位：", search_string)'''     if re.search(r'primary', search_string, flags=re.IGNORECASE):         '''re.IGNORECASE忽略大小写'''         active_ac = '主ip'         '''print("主ip: Primary active")'''     elif re.search(r'secondary', search_string, flags=re.IGNORECASE):

active_ac = '备ip'         '''print("备ip: Secondary active")'''     else:         #print("0")         return test = check_active_ac()