python实现聊天小程序

#-*- coding:utf-8 -*-
import socket, traceback, sys

host = ''
port = 51423

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((host, port))
s.listen(1)

ClientSock, ClientAddr = s.accept()
while 1:
 try:
  buf = ClientSock.recv(1024)
  if len(buf):
   print "客户端说: " + buf
  data = raw_input("服务端说: ")
  ClientSock.sendall(data)
 except:
  print "Dialogue Over"
  ClientSock.close()
  sys.exit(0)

#-*- coding:utf-8 -*-
import socket, sys

host = '192.168.80.21'
# host = raw_input("Plz imput destination IP:")
# data = raw_input("Plz imput what you want to submit:")
port = 51423

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

try:
 s.connect((host, port))
except socket.gaierror, e:
 print "Address-related error connecting to server: %s" % e
 sys.exit(1)
except socket.error, e:
 print "Connection error: %s" % e
 sys.exit(1)

while 1:
 try:
  data = raw_input("客户端说: ")
  s.send(data)
  buf = s.recv(1024)
  if len(buf):
   print "服务端说: " + buf
 except:
  print "Dialogue Over"
  s.close()
  sys.exit(0)