python - 写入的不仅仅是 "hello"

Question

如果我的理解是正确的，文档中的这个示例只能写一次“hello”:

from twisted.internet.protocol import DatagramProtocol
from twisted.internet import reactor

class Helloer(DatagramProtocol):

    def startProtocol(self):
        host = "192.168.1.1"
        port = 1234

        self.transport.connect(host, port)
        print "now we can only send to host %s port %d" % (host, port)
        self.transport.write("hello") # no need for address

    def datagramReceived(self, data, (host, port)):
        print "received %r from %s:%d" % (data, host, port)

    # Possibly invoked if there is no server listening on the
    # address to which we are sending.
    def connectionRefused(self):
        print "No one listening"

# 0 means any port, we don't care in this case
reactor.listenUDP(0, Helloer())
reactor.run()

我有一些问题:

1. 收到数据报时写“hello”的好方法是什么？在datagramReceived()中调用startProtocol()？

2. 假设在收到数据报后要写入另一条消息，例如“有人在家吗？”。是否应该实现一个 AnyoneHome(DatagramProtocol) 类？但它应该如何“链接”到 Helloer 并连接到 react 器呢？

谢谢

Answer 1

已解决。看起来我可以在 datagramReceived() 中调用 self.transport.write() 。