Python GUI在创建服务器后不响应

import tkinter as tk
from threading import Thread
import socket

def start_server():
    server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    server.bind(('localhost', 12345))
    server.listen(5)
    while True:
        client_socket, addr = server.accept()
        print(f"Got a connection from {addr}")

def on_button_click():
    thread = Thread(target=start_server)
    thread.start()

root = tk.Tk()
button = tk.Button(root, text="Start Server", command=on_button_click)
button.pack()
root.mainloop()

import tkinter as tk
import asyncio

async def start_server():
    server = await asyncio.start_server(handle_client, 'localhost', 12345)
    async with server:
        await server.serve_forever()

async def handle_client(reader, writer):
    data = await reader.read(100)
    message = data.decode()
    addr = writer.get_extra_info('peername')
    print(f"Received {message!r} from {addr!r}")
    writer.close()

def on_button_click():
    asyncio.run(start_server())

root = tk.Tk()
button = tk.Button(root, text="Start Server", command=on_button_click)
button.pack()
root.mainloop()

import tkinter as tk
from threading import Thread
import time

def start_server():
    time.sleep(5)  # 模拟耗时操作
    print("Server started")

def on_button_click():
    thread = Thread(target=start_server)
    thread.start()

root = tk.Tk()
button = tk.Button(root, text="Start Server", command=on_button_click)
button.pack()
root.mainloop()