Thread 线程失去引用，但是为何却能依旧保持接收客户端套接字？
如下这一小段代码，Thread 线程失去引用，但是为何却已然能保持接收客户端套接字？
Socket socketCommunication = null;
private void Watch()
{
while (true)
{
socketCommunication = socketWatch.Accept();
dictCommunication.Add(socketCommunication.RemoteEndPoint.ToString(), socketCommunication);
lbSocketOnline.Items.Add(socketCommunication.RemoteEndPoint.ToString());
// 此处这个 thread 每次都会在新客户端连接后 new 出新对象，但我并没有保存这个 thread 的引用，理论上应该已经丢失引用成为垃圾了
Thread thread = new Thread(() =>
{
while (true)
{
byte[] bytes = new byte[1024 * 1024 * 2];
int length = socketCommunication.Receive(bytes);
string msg = Encoding.UTF8.GetString(bytes, 0, length);
ShowMsg("接收到来自" + socketCommunication.RemoteEndPoint.ToString() + "的数据：" + msg);
}
});
thread.IsBackground = true;
thread.Start();
ShowMsg("客户端连接成功！通信地址为：" + socketCommunication.RemoteEndPoint.ToString());
}
}
