005---基于UDP的套接字

基于UDP的套接字

udp不同于tcp协议：不需要经过三次握手、四次挥手。直接发送数据就行。

服务端

import socket

ip_port = ('127.0.0.1', 8001)
buffer_size = 1024

service = socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM)

# 绑定
service.bind(ip_port)
print('start...')

while 1:
    data, addr = service.recvfrom(buffer_size)
    print('客户端发来的数据：', data.decode('utf-8'))
    print('客户端的信息：', addr)
    msg = input('给%s发送的消息：' % addr[1]).strip()
    service.sendto(msg.encode('utf-8'), addr)
    print('给客户端%s的消息：%s 发送成功' % (addr[1], msg))

客户端

import socket

ip_port = ('127.0.0.1', 8001)
buffer_size = 1024

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

while 1:
    msg = input('给服务器发送消息：').strip()
    if not msg:
        continue
    client.sendto(msg.encode('utf-8'), ip_port)
    data, addr = client.recvfrom(buffer_size)
    print(addr)
    print('服务器发来的消息：%s' % data.decode('utf-8'))