tkinter模态窗口

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