Python的socket编程，Pythonsocket编程,目前处在学习python

Python的socket编程，Pythonsocket编程,目前处在学习python

目前处在学习python的阶段，昨天看到了python的socket模块，分别实现TCP、UDP时间戳回显。 1、tcp通信server和client代码

# tcpServer.py#!/usr/bin/python# -*- coding: utf-8 -*-from socket import *from time import ctimeHOST = ''PORT = 21156BUFSIZE = 1024ADDR = (HOST,PORT)tcpServerSock = socket(AF_INET,SOCK_STREAM)tcpServerSock.bind(ADDR)tcpServerSock.listen(5)while True:    print 'waiting for connection...'    tcpClientSock ,addr = tcpServerSock.accept()    print '...connected from:',addr    while True:        data=tcpClientSock.recv(BUFSIZE)        if not data:            break        tcpClientSock.send('[%s] %s' % (ctime(),data))        tcpClientSock.close()tcpServerSock.close``````python# tcpClient.py#!/usr/bin/python# -*- coding: utf-8 -*-from socket import *HOST = 'localhost'PORT = 21156BUFSIZE = 1024ADDR = (HOST,PORT)tcpClientSock = socket(AF_INET,SOCK_STREAM)tcpClientSock.connect(ADDR)while True:    data = raw_input('>')    if not data:        break    tcpClientSock.send(data)    data = tcpClientSock.recv(BUFSIZE)    if not data:        break    print datatcpClientSock.close()

2、udp通信server和client代码

#udpServer.py#!/usr/bin/python# -*- coding: utf-8 -*-from socket import *from time import ctimeHOST = ''PORT = 21156BUFSIZE = 1024ADDR = (HOST,PORT)udpServerSock = socket(AF_INET,SOCK_DGRAM)udpServerSock.bind(ADDR)while True:    print 'waiting for message...'    data ,addr = udpServerSock.recvfrom(BUFSIZE)    udpServerSock.sendto('[%s] %s' % (ctime(),data), addr)    print '...received from and returned to:',addr        tcpClientSock.close()tcpServerSock.close``````python#udpClient.py#!/usr/bin/python# -*- coding: utf-8 -*-from socket import *# from time import ctimeHOST = 'localhost'PORT = 21156BUFSIZE = 1024ADDR = (HOST,PORT)udpClientSock = socket(AF_INET,SOCK_DGRAM)while True:    data = raw_input('>')    if not data:        break    udpClientSock.sendto(data,ADDR)    data,ADDR = udpClientSock.recvfrom(BUFSIZE)    if not data:        break    print dataudpClientSock.close()