與106-基于多進程的時間消息服務器類似，只是換成了多線程。

import socket
import threading
from time import strftime

class TcpTimeServer:
    def __init__(self, host='', port=12345):
        self.addr = (host, port)
        self.serv = socket.socket()
        self.serv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.serv.bind(self.addr)
        self.serv.listen(1)

    def chat(self, c_sock):
        while True:
            data = c_sock.recv(1024)
            if data.strip() == b'quit':
                break
            data = '[%s] %s' % (strftime('%H:%M:%S'), data.decode('utf8'))
            c_sock.send(data.encode('utf8'))
        c_sock.close()

    def mainloop(self):
        while True:
            cli_sock, cli_addr = self.serv.accept()
            t = threading.Thread(target=self.chat, args=(cli_sock,))
            t.start()

        self.serv.close()

if __name__ == '__main__':
    s = TcpTimeServer()
    s.mainloop()