GUI tkinter /我的主窗口覆盖了我创建的桌面

import tkinter as tk

root = tk.Tk()
root.title("Main Window")
root.geometry("400x300")

# 设置主窗口始终在最顶层
root.attributes('-topmost', True)

root.mainloop()

import tkinter as tk

def create_desktop():
    desktop = tk.Toplevel(root)
    desktop.title("Desktop")
    desktop.geometry("600x400")
    label = tk.Label(desktop, text="This is the desktop window")
    label.pack(pady=20)

root = tk.Tk()
root.title("Main Window")
root.geometry("400x300")

# 先创建主窗口并显示
root.update_idletasks()

# 再创建桌面窗口
create_desktop()

root.mainloop()

import tkinter as tk

root = tk.Tk()
root.title("Main Window")
root.geometry("400x300")

# 将主窗口置于最顶层
root.wm_attributes("-topmost", 1)

root.mainloop()