python socket编程实现的简单tcp迭代server

 

server：

import socket

PORT    = 9999
BACKLOG = 5
MAXLINE = 1024

listenfd = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
listenfd.bind(('',PORT))
listenfd.listen(BACKLOG)

while True:
  connfd, connaddr = listenfd.accept()
  print 'a new connection'
  buf = []
  buf = connfd.recv(MAXLINE)
  print buf
  connfd.send('Hello,this is server')
  connfd.close()

client:

import socket

addr = '127.0.0.1'
port = 9999
sockfd = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sockfd.connect((addr, port))
sockfd.send('Hello,this is client')
buf = []

while True:
  recv_data = sockfd.recv(1024)
  if recv_data:
    buf.append(recv_data)
  else:
    break

data = ''.join(buf)
print data
sockfd.close()