99-简单的UDP服务器流程

import socket
from time import strftime

host = ''
port = 12345
addr = (host, port)
s = socket.socket(type=socket.SOCK_DGRAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(addr)

while True:
    data, cli_addr = s.recvfrom(1024)
    clock = strftime('%H:%M:%S')
    data = data.decode('utf8')
    data = '[%s] %s' % (clock, data)
    s.sendto(data.encode('utf8'), cli_addr)

s.close()