python socket

最新推荐文章于 2025-09-07 01:02:55 发布

转载最新推荐文章于 2025-09-07 01:02:55 发布 · 71 阅读

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原文链接：http://www.cnblogs.com/vickey-wu/p/7675172.html

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#python

本文介绍了一个简单的Python程序，该程序实现了基于UDP协议的服务器和客户端。服务器接收来自客户端的消息并将其转换为大写形式再返回给客户端。客户端连接到服务器并发送消息，接收服务器返回的大写消息。

server

#!/usr/bin/env python
# -*- coding: UTF-8 -*-

import socket


def main():
    host = "127.0.0.1"
    port = 5000

    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    s.bind((host, port))

    print("Server started")
    while True:
        data, addr = s.recvfrom(1024)
        print("Message from: " + str(addr))
        print("From connected user: " + str(data))
        data =  str(data).upper()
        print("Sending: " + str(data))
        s.sendto(bytes(data, "utf-8"), addr)
    s.close()


if __name__ == '__main__':
    print("socket server running...")
    main()

client

#!/usr/bin/env python
# -*- coding: UTF-8 -*-

import socket


def main():
    host = "127.0.0.1"
    port = 5001

    server = ("127.0.0.1", 5000)

    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    s.bind((host, port))

    message = input("-->")
    while message != "q":
        s.sendto(bytes(message, "utf-8"), server)
        data, addr = s.recvfrom(1024)
        print("Received from server: " + str(data))
        message = input("-->")
    s.close()


if __name__ == '__main__':
    main()