如何在tkinter中查看和取消查看密码

import tkinter as tk

window = tk.Tk()

password_entry = tk.Entry(window, show="*")
password_entry.pack()

def toggle_password_visibility():
    if password_entry.cget("show") == "*":
        password_entry.config(show="")
    else:
        password_entry.config(show="*")

toggle_button = tk.Button(window, text="Toggle Password Visibility", command=toggle_password_visibility)
toggle_button.pack()

window.mainloop()