python UDP时间戳服务器

server端伪代码：

ss = socket()
ss.bind()
inf_loop:
    cs = ss.recvfrom() / ss.sendto()
ss.close()

server端：

# coding=utf-8
from socket import *
import time

HOST = 'localhost'
PORT = 12345
BUFSIZ = 1024
ADDR = (HOST, PORT)

udpSerSock = socket(type=SOCK_DGRAM)
udpSerSock.bind(ADDR)

while True:
    print('waiting for message...')
    data, addr = udpSerSock.recvfrom(BUFSIZ)
    udpSerSock.sendto(bytes(time.ctime(), 'utf-8'), addr)
    print('received from and returned to  ', addr)

udpSerSock.close()

client端：

伪代码：

cs = socket()
comm_loop:
    msg = cs.sendto / recvfrom()
cs.close()

# coding=utf-8
from socket import *

HOST = 'localhost'
PORT = 12345
BUFSIZ = 1024
ADDR = (HOST, PORT)

udpClisock = socket(type=SOCK_DGRAM)
while True:
    data = input('> ')
    if not data:
        break
    udpClisock.sendto(bytes(data, 'utf-8'), ADDR)
    data, ADDR = udpClisock.recvfrom(BUFSIZ)
    if not data:
        break
    print(data)

udpClisock.close()

运行结果：