如何在Tkinter中销毁所有同类标签？

import tkinter as tk

def destroy_labels():
    for widget in frame.winfo_children():
        if isinstance(widget, tk.Label):
            widget.destroy()

root = tk.Tk()

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

label1 = tk.Label(frame, text="Label 1")
label1.pack()

label2 = tk.Label(frame, text="Label 2")
label2.pack()

label3 = tk.Label(frame, text="Label 3")
label3.pack()

destroy_button = tk.Button(root, text="销毁标签", command=destroy_labels)
destroy_button.pack()

root.mainloop()