如何将tkinter帧中的元素数量存储为整数？

import tkinter as tk

def count_elements(frame):
    elements = frame.winfo_children()
    count = len(elements)
    return count

root = tk.Tk()
frame = tk.Frame(root)
frame.pack()

# 添加一些元素到帧中
label1 = tk.Label(frame, text="Label 1")
label1.pack()
label2 = tk.Label(frame, text="Label 2")
label2.pack()
button = tk.Button(frame, text="Button")
button.pack()

# 获取帧中元素的数量并存储为整数
element_count = count_elements(frame)
print("帧中元素的数量：", element_count)

root.mainloop()