socket通讯-----UDP

import socket
sk = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
sk.bind(("127.0.0.1", 8090))
while True:
    data,addr = sk.recvfrom(1024)
    print(">>>>>>%s发来的消息:%s" % (addr, data.decode("utf-8")))
    info = input(">>>>>>:")
    sk.sendto(bytes(info, encoding="utf-8"), addr)
    if data.decode("utf-8") == "bye":
        break
sk.close()

import socket
sk = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
sk.connect(("127.0.0.1", 8090))
while True:
    info = input(">>>>>:")
    sk.sendto(bytes(info, encoding="utf-8"), ("127.0.0.1", 8090))
    data, addr1 = sk.recvfrom(1024)
    print(">>>>>%s发来的消息:%s" % (addr1, data.decode("utf-8")))
    if data == "bye":
        break
sk.close()