python实现的telnet客户端程序，python自带一个telnetlib模块，可以通过其Telnet类实现telnet操作

import getpass  import sys  import telnetlib      HOST = "hostname"      user = raw_input("Enter your remote account: ")      password = getpass.getpass()      tn = telnetlib.Telnet(HOST)      tn.read_until("login: ")      tn.write(user + "\n")      if password:      tn.read_until("Password: ")      tn.write(password + "\n")      tn.write("ls\n")      tn.write("exit\n")      print tn.read_all()