【python】网络编程-TCP协议套接字

#!/usr/bin/env python

from socket import *
from time import ctime

HOST = ‘‘
PORT = 21567
BUFSIZ = 1024
ADDR = (HOST, PORT)

tcpSerSock = socket(AF_INET, SOCK_STREAM) ##创建服务器TCP套接字
tcpSerSock.bind(ADDR)
tcpSerSock.listen(5)

while True:
    print ‘waiting for connection...‘
    tcpCliSock, addr = tcpSerSock.accept() ##等待客户端连接
    print ‘...connected from:‘, addr

    while True:
        data = tcpCliSock.recv(BUFSIZ)  ##监听客户端是否发送消息
        if not data:
            break
        tcpCliSock.send(‘[%s] %s‘ % (
            ctime(), data))

    tcpCliSock.close()
tcpSerSock.close()

#!/usr/bin/env python

from socket import *

HOST = ‘localhost‘
PORT = 21567
BUFSIZ = 1024
ADDR = (HOST, PORT)

tcpCliSock = socket(AF_INET, SOCK_STREAM)   ##创建客户端TCP套接字
tcpCliSock.connect(ADDR)  ##连接服务器

while True:
    data = raw_input(‘> ‘)
    if not data:
        break
    tcpCliSock.send(data)
    data = tcpCliSock.recv(BUFSIZ) ##监听客户端发送消息
    if not data:
        break
    print data

tcpCliSock.close()