输入正确的密码后，无法关闭Tkinter的弹出窗口

from tkinter import messagebox, Tk, Toplevel, Label, Entry, Button

def check_password():
    password = entry.get()
    if password == "password123":  # 这里是正确的密码
        password_window.destroy()  # 关闭弹出窗口
    else:
        messagebox.showinfo("密码错误", "请输入正确的密码！")

def open_password_window():
    global password_window
    password_window = Toplevel(root)
    password_window.title("请输入密码")
    label = Label(password_window, text="请输入密码：")
    label.pack()
    global entry
    entry = Entry(password_window, show="*")
    entry.pack()
    button = Button(password_window, text="确认", command=check_password)
    button.pack()

root = Tk()
button = Button(root, text="打开密码窗口", command=open_password_window)
button.pack()

root.mainloop()