UDP协议

   

server端

import socket
sk=socket.socket(type=socket.SOCK_DGRAM)
sk.bind(('127.0.0.1',9001))

msg,addr=sk.recvfrom(1024)
print(msg)
sk.sendto(b'hello',addr)

client端

import socket
sk=socket.socket(type=socket.SOCK_DGRAM)


server=('127.0.0.1',9001)
sk.sendto(b'hi',server)
msg=sk.recv(1024)
print(msg)