打算為基於廣播的UDP聊天室做一個UI介面，並且可以隨時切換埠來做到切換頻道的效果，但在接收封包的部分遇到了問題。

VScode報錯:

in recv
recv_socket.bind(('', port))
OSError: [WinError 10022] 提供了一個不正確的引數。

程式碼:

import tkinter as tk
from socket import socket, AF_INET, SOCK_DGRAM, SOL_SOCKET, SO_REUSEADDR, SO_BROADCAST
from time import sleep
from threading import Thread

#發送封包
def send(event=None):
    entry = send_entry.get()
    send_entry.delete(0, "end")
    port = int(channel_entry.get())
    sendSocket = socket(AF_INET, SOCK_DGRAM)
    sendSocket.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
    sendSocket.sendto(entry.encode("utf-8"), ('255.255.255.255', port))

#接收器
recv_socket = socket(AF_INET, SOCK_DGRAM)
recv_socket.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
recv_socket.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
def recv():
    text_box.config(state=tk.NORMAL)
    text_box.insert(tk.END, "[*] 載入 UDP 訊息接收器完成\n")
    text_box.config(state=tk.DISABLED)
    while True:
        port = int(channel_entry.get())
        recv_socket.bind(('', port))
        try:
            recv_data = recv_socket.recvfrom(1024)
            text_box.config(state=tk.NORMAL)
            text_box.insert(tk.END, f"{recv_data[1][0]}:{recv_data[0].decode('utf-8')}\n")
            text_box.config(state=tk.DISABLED)
            text_box.see(tk.END)
            sleep(1)
        except OSError:
            text_box.config(state=tk.NORMAL)
            text_box.insert(tk.END, "[*] 超過單次字數限制\n")
            text_box.config(state=tk.DISABLED)
            text_box.see(tk.END)

#接收器線呈
Thread(target=recv, daemon=True).start()

app.mainloop()