实验要求

实验代码及结果

S

import socket # 本机IP和开放端口 host_port = ('127.0.0.1', 8888) # 最大传输字节 data_size = 1024 # 编解码格式 data_type = 'utf-8' # 最大连接数 connect_max = 5 def create_server(): try: # 创建socket对象 server = socket.socket( socket.AF_INET, socket.SOCK_DGRAM # UDP ) # 绑定主机IP与端口 server.bind(host_port) while True: # data为接收数据，add为发送者地址 receiver_data, add = server.recvfrom(data_size) receiver_data = receiver_data.decode(data_type) print('接收到来自{}的内容：{}'.format(add, receiver_data)) # 将字母全部转为大写 send_data = receiver_data.upper() # 发送给客户端 server.sendto(send_data.encode(data_type), add) print('已发送给{}内容：{}'.format(add, send_data)) except Exception as e: print(e) create_server()

S

import socket # 服务器IP和开放端口 server_host_port = ('127.0.0.1', 8888) # 本地IP和开放端口 client_host_port = ('127.0.0.1', 8889) # 最大传输字节 data_size = 1024 # 编解码格式 data_type = 'utf-8' def create_client(): client = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) client.bind(client_host_port) try: while True: send_data = input('请输入要发送的字符：') # 发送内容 client.sendto(send_data.encode(data_type), server_host_port) # 接收内容 receive_data, add = client.recvfrom(data_size) print('接收到来自{}的消息：{}'.format(add, receive_data.decode(data_type))) except Exception as e: print(e) create_client()

实验结果： C： S：