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运行环境： Pycharm 2021.3.1/python 3.9
TCPClient.py
from socket import * # TCP客户端 2022/02/26 # 定义服务端IP及端口号 serverIP = '127.0.0.1'
serverPort = 997 # 创建客户套接字 clientSocket = socket(AF_INET, SOCK_STREAM) #
与服务器端欢迎套接字进行三次握手创建TCP连接 clientSocket.connect((serverIP, serverPort)) #
输入message message = input('Please input your message : ') #
与服务器连接套接字通信发送message clientSocket.send(message.encode()) # 接收 modifiedMessage =
clientSocket.recv(1024) # 在控制台输出 print(modifiedMessage.decode()) # 关闭
clientSocket.close()
TCPServer.py
from socket import * # TCP服务器端 2022/02/26 # 定义服务器欢迎套接字端口号 serverPort = 997 #
创建欢迎套接字 serverSocket = socket(AF_INET, SOCK_STREAM) # 绑定端口号和欢迎套接字
serverSocket.bind(('', serverPort)) print('The server is ready to listen !') #
欢迎套接字等待并聆听客户敲门 serverSocket.listen(1) # 监听到至少1位客户时进入循环 while 1: # 创建连接套接字
connectionSocket, clientAddress = serverSocket.accept() print('The server is
ready to accept !') # 接收message message = connectionSocket.recv(1024)
print('-------Received message: ' + message.decode() + '-------') # 处理
modifiedMessage = message.upper() print(modifiedMessage.decode()) # 发送
connectionSocket.send(modifiedMessage) print('------- I MADE IT ! -------') #
关闭连接套接字 connectionSocket.close()
运行结果：
