c# - 如何使套接字客户端准备好发送和接收而不需要服务器的操作？

Question

我有一个 server.py 套接字代码和 client.py。现在我需要客户端始终准备好（处于待机状态）以接收数据，即使它没有向服务器发送任何数据。可以这样做吗？

Answer 1

Well, I suppose what you need is select module.

http://www.doughellmann.com/PyMOTW/select/

The idea is that with the help of select you can wait for different types of events (read, write, exception) that happen on sockets passed to select's input.

Answer 2

我用它来接收从一些 C# 代码发送的数据，这些代码是我在 Python 中处理的。当您使用接收到的数据在其他线程中执行操作时，它使用线程“永远监听”。希望这可以帮助：

import threading
import SocketServer


class UDPHandler(SocketServer.BaseRequestHandler):
    def handle(self):
        ## DO SOMETHING USEFUL WITH WHAT YOU RECEIVE VIA self:
        data = self.request[0].strip()  # in this case, self.request[0] contains a string
        # etc.

class Listener(threading.Thread):
    def run(self):
        HOST = "192.168.1.23"
        PORT = 8888
        server = SocketServer.UDPServer((HOST, PORT), UDPHandler)
        server.serve_forever()

Listener().start()