tcp-server import socket address=('127.0.0.1',8000) back_log=5 tcp_server=socket.socket(socket.AF_INET,socket.SOCK_STREAM) tcp_server.bind(address) tcp_server.listen(back_log) while True: print('服务器开始运行了') conn,addr=tcp_server.accept() while True: try: res=conn.recv(1024) print('服务端收到消息:%s'%res.decode('utf-8')) conn.send('from server--'.encode('utf-8')+res.upper()) print('服务端发送了消息') except Exception: break; conn.close() tcp_server.closer() tcp-client import socket address=('127.0.0.1',8000) tcp_client=socket.socket(socket.AF_INET,socket.SOCK_STREAM) tcp_client.connect(address) while True: print('客户端发送消息：') msg=input('>>>>').strip() tcp_client.send(msg.encode('utf-8')) res=tcp_client.recv(1024) print('收到消息：%s'%res.decode('utf-8')) tcp_client.close()