Python network programming----UDP-based python simple server

The UDP server is not connection-oriented, so you do not have to do as many setup work as a TCP server. In fact, there's no need to set anything, just wait for the connection to come in.

SS = socket ()                       # Create a server Socket Ss.bind ()                     # BIND server socket Inf_loop:                     # server Infinite loop cs = Ss.recvfrom ()/ss.sendto ()                        # Dialog (Receive and send) Ss.close ()                        # Close Server sockets

Server-side:

From socket import *from time import ctimeudpsock=socket (af_inet,sock_dgram)                         #参数SOCK_DGRAM对应的是UDP协议                    name= GetHostName () Port=12348udpsock.bind ((Name,port)) while True:    print ("Waiting for Access")    Data,addr=udpsock.recvfrom ( 1024x768)                       #与TCP的区别. Because you do not need to establish a link beforehand, you need to get the address of the client and send the message at any time by address    print (str (addr) + "plugged in")    Data= (Data.decode ("UTF-8") +ctime ()). Encode ("UTF-8")    Udpsock.sendto (DATA,ADDR)                              #向客户端发送消息UdpSock. Close ()

Client:

#coding =utf-8from Socket Import *import sysreload (SYS) sys.setdefaultencoding (' UTF8 ')   host= "192.168.1.66" port= 12348udpsock=socket (Af_inet,sock_dgram) while True:    data=raw_input ("Fast Typing:")    if not data: Break    Udpsock.sendto (data, (Host,port))                       #无需connect, direct access to host    Data,addr=udpsock.recvfrom (1024x768) print via host IP and Port    (Data.decode ("UTF-8")) Udpsock.close ()

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Python network programming----UDP-based python simple server