python socket了解使用

#服务器端import socketserver = socket.socket()server.bind((‘localhost‘,6969))#绑定要监听端口server.listen()#监听conn, addr = server.accept()  # 等电话打进来# conn就是客户端连过来而在服务器端为其生成的一个连接实例print(conn, addr)while True:    print(‘电话来了‘)    data=conn.recv(1024)    print(‘recv:‘,data)    conn.send(data.upper())server.close()

#客户端import  socketclient= socket.socket()#声明socket类型，同时生成socket连接对象client.connect((‘localhost‘,6969))while True:    msg = input(">>:").strip()    if len(msg)== 0:continue    client.send(msg.encode("UTF-8"))    data= client.recv(1024)    print(‘recv:‘,data.decode())client.close()