套接字关闭时,UDP套接字上的select不会结束 - 我做错了什么？

sock.close()

import socket

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind(('localhost', 12345))

while True:
    data, addr = sock.recvfrom(1024)
    print(f"Received data: {data.decode('utf-8')} from {addr}")
    sock.sendto("Hello, client!".encode('utf-8'), addr)

sock.close()