tkinter模态窗口

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download_window = Toplevel(root)             download_window.title('更新新版本软件')             download_window.geometry('300x150+350+250')                           save_btn = Button(download_window, text='下载新版本检查工具', command=save_check_tool)             save_btn.pack()             download_progress = tkinter.ttk.Progressbar(download_window)             download_progress.pack()                           download_window.protocol("WM_DELETE_WINDOW", close_download)                           download_window.focus_set() #获得焦点             download_window.grab_set()  #禁用其他窗口             download_window.wait_window()   #窗口关闭前等待执行