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python编写的一个简单的socket c/s用于发送和接受数据包

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python编写的一个简单的socket c/s用于发送和接受数据包

服务端代码


import socket

HOST = "127.0.0.1"
PORT = 5000

mySocket = socket.socket( socket.AF_INET, socket.SOCK_DGRAM )

mySocket.bind( ( HOST, PORT ) )

while 1:
   packet, address = mySocket.recvfrom( 1024 )

   print "Packet received:"
   print "From host:", address[ 0 ]
   print "Host port:", address[ 1 ]
   print "Length:", len( packet )
   print "Containing:"
   print "\t" + packet

   # step 4: echo packet back to client
   print "\nEcho data to client...",
   mySocket.sendto( packet, address )
   print "Packet sent\n"

mySocket.close()


客户端代码


import socket

HOST = "127.0.0.1"
PORT = 5000

mySocket = socket.socket( socket.AF_INET, socket.SOCK_DGRAM )

while 1:
   packet = raw_input( "Packet>>>" )
   print "\nSending packet containing:", packet
   mySocket.sendto( packet, ( HOST, PORT ) )
   print "Packet sent\n"

   # step 3: receive packet back from server
   packet, address = mySocket.recvfrom( 1024 )
   print "Packet received:"
   print "From host:", address[ 0 ]
   print "Host port:", address[ 1 ]
   print "Length:", len( packet )
   print "Containing:"
   print "\t" + packet + "\n"

mySocket.close()


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