socket代码（简单）

 SERVER:

 #!/usr/bin/python
 # -*- coding: utf-8 -*-
 import socket
 import time
 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 s.bind(('', 12345))
 s.listen(5)
 try:

     while 1:

         cs, ca = s.accept()

         print cs, ca
         while 1:
             data = cs.recv(1024)
             if not data:
                 raise Exception('recv nothing')
             print data
             cs.send(str(time.ctime()))
 except Exception as e:
     print e
     s.close()

 CLIENT:

 import socket

 host = '127.0.0.1'
 port = 12345
 bufsiz = 1024
 ADDR = (host,port)

 tcpCliSock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 tcpCliSock.connect(ADDR)

 while True:
     data = raw_input('> ')
     if not data:
         break
     tcpCliSock.send(data)
     data = tcpCliSock.recv(bufsiz)
     if not data:
         break
     print data

 tcpCliSock.close()