python网络编程-udp/tcp通信

python网络编程-udp通信

udp服务端：

import socket


def main():
    # 1. 创建socket
    udp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    # 2. 绑定ip
    udp_server_addr = ('127.0.0.1', 1235)
    udp_server_socket.bind(udp_server_addr)
    while True:
        # 3. 接收数据
        recv_data, recv_client_ip_port = udp_server_socket.recvfrom(1024)
        # 4. 打印数据
        print("接收到的数据如下：" + recv_data.decode('utf-8'))
    # 5. 关闭socket
    udp_server_socket.close()


if __name__ == '__main__':
    main()

udp客户端

import socket


def main():
    # 1. 创建socket
    udp_client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    while True:
        # 2. 发送数据
        data = input('请输入要发送的数据：')
        udp_client_socket.sendto(data.encode('utf-8'), ('127.0.0.1', 1235))
    # 3. 关闭socket
    udp_client_socket.close()


if __name__ == '__main__':
    main()

tcp 服务端

import socket


def main():
    # 1. 建立socket
    tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    # 2. 绑定ip和端口
    ip_address = '127.0.0.1'
    ip_port = 1236
    tcp_server_socket.bind((ip_address, ip_port))
    # 3. 开启监听
    tcp_server_socket.listen(128)
    while True:
        # 4. 等待客户端连接
        new_client_socket, new_client_addr = tcp_server_socket.accept()
        while True:
            # 5. 接收客户端发送过来的请求
            recv_data = new_client_socket.recv(1024)
            print(recv_data.decode('utf-8'))
            # 6. 回送一部分数据给客户端
            new_client_socket.send("Thanks".encode('utf-8'))
        # 7. 关闭套接字
        new_client_socket.close()
    tcp_server_socket.close()


if __name__ == '__main__':
    main()

tcp 客户端

import socket


def main():
    # 1. 创建socket
    tcp_client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    # 2. 建立连接
    ip_addr = '127.0.0.1'
    ip_port = 1236
    tcp_client_socket.connect((ip_addr, ip_port))
    while True:
        # 3. 发送数据
        data = input("请输入要发送的消息: ")
        tcp_client_socket.send(data.encode('utf-8'))
    # 4. 关闭socket
    tcp_client_socket.close()


if __name__ == '__main__':
    main()