如何在主脚本上调用多个TCP监听器

import socket
import threading

def handle_client(client_socket):
    while True:
        data = client_socket.recv(1024)
        if not data:
            break
        client_socket.send(data)  # Echo back the received data
    client_socket.close()

def start_server(port):
    server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    server.bind(('0.0.0.0', port))
    server.listen(5)
    print(f"Listening on port {port}...")

    while True:
        client_sock, addr = server.accept()
        print(f"Accepted connection from {addr}")
        client_handler = threading.Thread(target=handle_client, args=(client_sock,))
        client_handler.start()

if __name__ == "__main__":
    port1 = 12345
    port2 = 12346

    server_thread1 = threading.Thread(target=start_server, args=(port1,))
    server_thread2 = threading.Thread(target=start_server, args=(port2,))

    server_thread1.start()
    server_thread2.start()

    server_thread1.join()
    server_thread2.join()