test for python socket

server:

 #!/usr/bin/python

 import socket
 import threading
 import time

 def tcplink(sock, addr):
     print 'accept new connection from %s:%s...' % addr
     sock.send('welcome to hahaha!')
     while True:
         data = sock.recv(1024)
         time.sleep(1)
         if data == 'exit' or not data:
             break
         print 'recv msg: %s from %s' % (data,addr)
         sock.send('hello,%s!' % data)
     sock.close()
     print 'connection from %s:%s closed.' % addr

 s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
 s.bind(('0.0.0.0',9999))
 s.listen(5)
 print 'waiting for connection...'

 while True:
     sock, addr = s.accept()
     tt = threading.Thread(target=tcplink,args=(sock,addr))
     tt.start()

client:

 #!/usr/bin/python

 import socket

 s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
 s.connect(('127.0.0.1',9999))
 print 'recv msg:%s' % s.recv(1024)

 while True:
     data = raw_input('input sth:')
     if not data:
         continue
     if data == 'exit':
         break
     s.send(data)
     print 'recv msg:%s' % s.recv(1024)
 s.close()