Python網路編程之TCP與UDP協議通訊端用法樣本，pythonudp

Python網路編程之TCP與UDP協議通訊端用法樣本，pythonudp

本文執行個體講述了Python網路編程之TCP與UDP協議通訊端用法。分享給大家供大家參考，具體如下：

TCP協議

伺服器端：

#!/usr/bin/env pythonfrom socket import *from time import ctimeHOST = ''PORT = 21567BUFSIZ = 1024ADDR = (HOST, PORT)tcpSerSock = socket(AF_INET, SOCK_STREAM) ##建立伺服器TCP通訊端tcpSerSock.bind(ADDR)tcpSerSock.listen(5)while True:  print 'waiting for connection...'  tcpCliSock, addr = tcpSerSock.accept() ##等待用戶端串連  print '...connected from:', addr  while True:    data = tcpCliSock.recv(BUFSIZ) ##監聽用戶端是否發送訊息    if not data:      break    tcpCliSock.send('[%s] %s' % (      ctime(), data))  tcpCliSock.close()tcpSerSock.close()

用戶端：

#!/usr/bin/env pythonfrom socket import *HOST = 'localhost'PORT = 21567BUFSIZ = 1024ADDR = (HOST, PORT)tcpCliSock = socket(AF_INET, SOCK_STREAM)  ##建立用戶端TCP通訊端tcpCliSock.connect(ADDR) ##串連伺服器while True:  data = raw_input('> ')  if not data:    break  tcpCliSock.send(data)  data = tcpCliSock.recv(BUFSIZ) ##監聽用戶端發送訊息  if not data:    break  print datatcpCliSock.close()

UDP協議

伺服器端:

#!/usr/bin/env pythonfrom socket import *from time import ctimeHOST = ''PORT = 21567BUFSIZ = 1024ADDR = (HOST, PORT)udpSerSock = socket(AF_INET, SOCK_DGRAM)udpSerSock.bind(ADDR)while True:  print 'waiting for message...'  data, addr = udpSerSock.recvfrom(BUFSIZ)##監聽並接受用戶端發的訊息  udpSerSock.sendto('[%s] %s' % (  ##給訊息加上時間戳記並返回給用戶端    ctime(), data), addr)  print '...received from and returned to:', addrudpSerSock.close()

用戶端：

#!/usr/bin/env pythonfrom socket import *HOST = 'localhost'PORT = 21567BUFSIZ = 1024ADDR = (HOST, PORT)udpCliSock = socket(AF_INET, SOCK_DGRAM)while True:  data = raw_input('> ')  if not data:    break  udpCliSock.sendto(data, ADDR) ##給伺服器發送資料  data, ADDR = udpCliSock.recvfrom(BUFSIZ) ##用戶端接受帶時間戳記的資料  if not data:    break  print dataudpCliSock.close()