如何使用tkinter同时运行两个函数

import tkinter as tk
import threading

def function1():
    # 第一个函数的逻辑代码
    pass

def function2():
    # 第二个函数的逻辑代码
    pass

def run_functions():
    # 创建线程并启动
    thread1 = threading.Thread(target=function1)
    thread1.start()
    
    thread2 = threading.Thread(target=function2)
    thread2.start()

# 创建主窗口
window = tk.Tk()

# 创建按钮并绑定事件
button = tk.Button(window, text="运行函数", command=run_functions)
button.pack()

# 进入主循环
window.mainloop()