python 3 socket

发布时间：2019-09-24 08:26:54编辑：auto阅读（1980）

    server.py:

    import socket


    def main():

        host = '127.0.0.1'

        port = 5000


        server_socket = socket.socket()

        server_socket.bind((host, port))

        server_socket.listen(1)


        print('***** Server Started *****')

        conn, addr = server_socket.accept()

        print('Connection from: ' + str(addr))

        while True:

            data = conn.recv(1024).decode()

            print('from connected user: ' + str(data))

            if not data:

                data = 'NO DATA'

            else:

                data = str(data).upper()

            print('sending: ' + str(data))

            conn.send(data.encode())


        conn.close()


    client.py:

    import socket


    def main():

        host = '127.0.0.1'

        port = 5000


        client_socket = socket.socket()

        client_socket.connect((host, port))


        message =  input(' -> ')


        while message != 'q':

            client_socket.send(message.encode())

            data = client_socket.recv(1024).decode()

            print('Receive from server: ' + data)

            message = input(' -> ')


        client_socket.close()


    if __name__ == '__main__':

        main()


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