python udp简单通信

server端

 

import socket

BUFSIZE = 1024

ip_port = ('127.0.0.1', 9999)

server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)  # udp协议

server.bind(ip_port)

while True:

    data,client_addr = server.recvfrom(BUFSIZE)

    print('server收到的数据', data)

 

    server.sendto(data.upper(),client_addr)

 

server.close()

client端

import socket

BUFSIZE = 1024

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

while True:

    msg = input(">> ").strip()

    ip_port = ('127.0.0.1', 9999)

    client.sendto(msg.encode('utf-8'),ip_port)

 

    data,server_addr = client.recvfrom(BUFSIZE)

    print('客户端recvfrom ',data,server_addr)

 

client.close()