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我最近开始开发一个用于学习目的的服务器-客户端聊天协议（后来我想用这种通信做更多的事情，但现在就足够了。不用说，我还处于 Python 这部分的学习阶段，但是我已经修改了一些我在网上找到的服务器和客户端的示例。从我目前看到的情况来看，通信运行良好，但是每次我想向服务器发送消息时都必须重新启动客户端。这里是代码：

服务器：

from twisted.internet import reactor, protocol
from twisted.protocols import basic


class Echo(protocol.Protocol):

    def dataReceived(self, data):
        "As soon as any data is received, write it back."
        self.transport.write(data)

class MyChat(basic.LineReceiver):
    def connectionMade(self):
        print "Got new client!"
        self.factory.clients.append(self)

    def connectionLost(self, reason):
        print "Lost a client!"
        self.factory.clients.remove(self)

    def dataReceived(self, data):
        print "received", repr(data)
        for c in self.factory.clients:
            c.message(data)

    def message(self, message):
        self.transport.write(message + '\n')

def main():
    """This runs the protocol on port 8000"""
    factory = protocol.ServerFactory()
    factory.protocol = MyChat
    factory.clients = []
    reactor.listenTCP(8000,factory)
    reactor.run()

# this only runs if the module was *not* imported
if __name__ == '__main__':
    main()

客户：

from twisted.internet import reactor, protocol


# a client protocol

class EchoClient(protocol.Protocol):
    """Once connected, send a message, then print the result."""

    def connectionMade(self):
        self.transport.write("hello, world!")

    def dataReceived(self, data):
        "As soon as any data is received, write it back."
        print "Server said:", data
        self.transport.loseConnection()

    def connectionLost(self, reason):
        print "connection lost"

class EchoFactory(protocol.ClientFactory):
    protocol = EchoClient

    def clientConnectionFailed(self, connector, reason):
        connector.connect()
        print "Connection failed - goodbye!"
        reactor.stop()

    def clientConnectionLost(self, connector, reason):
        connector.connect()
        print "Connection lost - goodbye!"
        reactor.stop()


# this connects the protocol to a server runing on port 8000
def main():
    f = EchoFactory()
    client = EchoClient()
    reactor.connectTCP("localhost", 8000, f)
    reactor.run()

# this only runs if the module was *not* imported
if __name__ == '__main__':
    main()

我忘记添加什么以便我可以将多个客户端连接到服务器并保持连接？我看了这里和这里（第一个似乎是同一类型的问题），但我仍然对如何解决这个问题感到困惑。任何建议表示赞赏。谢谢！

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