python-网络编程(2)

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python-网络编程(2)

客户端：

		
								#!/use/bin/env python

								from socket import *

								HOST = 'localhost'

								PORT = 21567

								BUFSIZE = 1024

								ADDR = (HOST, PORT)

								tcpCliSock = socket(AF_INET)

								tcpCliSock.connect(ADDR)

								while True:

								    data = raw_input('> ')

								    if not data:

								        break

								    tcpCliSock.send(data)

								    data = tcpCliSock.recv(BUFSIZE)

								    if not data:

								        break

								    print data

								tcpCliSock.close()

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2.4.UDP服务器和客户端

服务器：

		
								#!/use/bin/env python

								from socket import *

								import time

								HOST = ''

								PORT = 21567

								BUFSIZE = 1024

								ADDR = (HOST, PORT)

								udpSerSock = socket(AF_INET, SOCK_DGRAM)

								udpSerSock.bind(ADDR)

								while True:

								    print('waittinng for meaasge...')

								    data, addr = udpSerSock.recvfrom(BUFSIZE)

								    lotime = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())

								    udpSerSock.sendto(b'[%s] %s' %(lotime, data), addr)

								    print('...received from and returned to: ', addr)

								udpSerSock.close()

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