python_day8 socket 网络编程 基本篇

服务端：

server=socket.socket(socket.AF_INET,socket.SOCK_STREAM)server.bind((‘127.0.0.1‘,80))server.listen(5)conn,address=server.accept()data=conn.recv(1024)print(data)conn.send(data.upper())conn.close()server.close()

客户端

import socketclient=socket.socket(socket.AF_INET,socket.SOCK_STREAM)client.connect((‘127.0.0.1‘,80))client.send(‘aaa‘.encode(‘utf-8‘))data=client.recv(1024)print(data)client.close()