python|计算机网络-基于python的TCP套接字编程 socket|网络

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()