软件环境：python2.7
1.服务端
#!/usr/bin/env python from socket import * from time import ctime HOST = '' PORT = 21567 BUFSIZ = 1024 ADDR = (HOST,PORT) udpSerSock = socket(AF_INET,SOCK_DGRAM) udpSerSock.bind(ADDR) while True: print 'waiting for message...' data,addr = udpSerSock.recvfrom(BUFSIZ) udpSerSock.sendto('[%s] %s' % (ctime(),data),addr) print '...received from and returned to :',addr udpSerSock.close()2.客户端
#!/usr/bin/env python from socket import * HOST = 'localhost' PORT = 21567 BUFSIZ = 1024 ADDR = (HOST,PORT) udpCliSock = socket(AF_INET,SOCK_DGRAM) while True: data = raw_input('> ') if not data: break udpCliSock.sendto(data,ADDR) data,ADDR = udpCliSock.recvfrom(BUFSIZ) if not data: break print data udpCliSock.close()