注意：

通过self.request.recv()和self.request.send()两个函数来接受和发送消息；

服务器端代码：

from socketserver import (TCPServer, BaseRequestHandler) from time import ctime HOST = '' PORT = 12345 ADDR = (HOST, PORT) BUFSIZE = 1024 class MyHandler(BaseRequestHandler): def handle(self): print('connected from:', self.client_address)         data = '[%s]%s' % (ctime(), self.request.recv(BUFSIZE).decode('UTF-8'))         self.request.send(bytes(data, 'UTF-8')) tcpSer = TCPServer(ADDR, MyHandler) print('...waiting fo connection...') tcpSer.serve_forever()

客户端代码：

from socket import * HOST = 'localhost' PORT = 12345 ADDR = (HOST, PORT) BUFSIZE = 1024 def main(): while True:         tcpCliSock = socket(AF_INET, SOCK_STREAM)         tcpCliSock.connect(ADDR)         data = input('>') if not data: break;         tcpCliSock.send(bytes(data + '\r\n', 'UTF-8'))         data = tcpCliSock.recv(BUFSIZE).decode('UTF-8') if not data: break; print (data)         tcpCliSock.close() main()