如何解决线程中socket的ReceiveFrom函数阻塞而导致的无法关闭线程的问题？[
有一个线程，利用socket的ReceiveFrom函数获取数据，这个需要绑定端口，如果我想换一个端口绑定，销毁上一个线程，可是上一个线程有可能一直在socket的ReceiveFrom函数这里阻塞而无法关闭，我该怎么办？

[解决办法]
比如说你可以关闭那个socket，来终止ReceiveFrom：

C# code

static void Receive(object state){    Socket socket = state as Socket;    EndPoint otherEnd = new IPEndPoint(IPAddress.Any, 0);    byte[] buffer = new byte[6400];    try    {        socket.ReceiveFrom(buffer, ref otherEnd);    }    catch (SocketException se)    {        Console.WriteLine(se.Message);    }}static void Main(){    Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);    socket.Bind(new IPEndPoint(IPAddress.Any, 12345));    ThreadPool.QueueUserWorkItem(Receive, socket);    Thread.Sleep(2 * 1000);    socket.Shutdown(SocketShutdown.Both);    socket.Close();                        //<---    Console.WriteLine("socket closed");    Console.ReadLine();}
[解决办法]
试试看异步吧
[解决办法]
放个public static的变量，用于在下次receive前判断，
比如
while(true)
{
  if (var)
  {
   break;
  }

  receive...
}