python-18-初识udp

udp服务端

from socket import *
ip_port = ('127.0.0.1',9999)
buffer_size = 1024

udp_server = socket(AF_INET,SOCK_DGRAM)#数据报
udp_server.bind(ip_port)

while True:
    data,addr = udp_server.recvfrom(buffer_size)
    print(data)

    udp_server.sendto(data.upper(),addr)

udp客户端

from socket import *
ip_port = ('127.0.0.1',9999)
buffer_size = 1024

udp_client = socket(AF_INET,SOCK_DGRAM)#数据报

while True:
    msg = input('>>:').strip()
    udp_client.sendto(msg.encode('utf-8'),ip_port)

    data,addr = udp_client.recvfrom(buffer_size)
    print(data.decode('utf-8'))

time-udp-server

from socket import *
import time
ip_port = ('127.0.0.1',9999)
buffer_size = 1024

udp_server = socket(AF_INET,SOCK_DGRAM)#数据报
udp_server.bind(ip_port)

while True:
    data,addr = udp_server.recvfrom(buffer_size)
    print(data)
    back_time = time.strftime('%Y-%m-%d %X')
    udp_server.sendto(back_time.encode('utf-8'),addr)

time-udp-client

from socket import *
ip_port = ('127.0.0.1',9999)
buffer_size = 1024

udp_client = socket(AF_INET,SOCK_DGRAM)#数据报

while True:
    msg = input('>>:').strip()
    udp_client.sendto(msg.encode('utf-8'),ip_port)

    data,addr = udp_client.recvfrom(buffer_size)
    print('时间：',data.decode('utf-8'))