tk.Label(window, bg='yellow', width=4, textvariable=var1)
l.pack()
循环刷新窗口
window.mainloop() # 不断刷新主窗口
Menubar...menubar = tk.Menu(window)
filemenu = tk.Menu(menubar, tearoff=0)
menubar.add_cascade(label='File', menu...menu=submenu, underline=0)
submenu.add_command(label="Submenu1", command=do_job)
editmenu = tk.Menu(menubar..., tearoff=0)
menubar.add_cascade(label='Edit', menu=editmenu)
editmenu.add_command(label='Cut', command...label='Copy', command=do_job)
editmenu.add_command(label='Paste', command=do_job)
window.config(menu=menubar