您正在调用 while True.长话短说，Tk() 有它自己的事件循环.因此，每当您调用某个长时间运行的进程时，它都会阻止此事件循环，您将无能为力.您可能应该使用 after

You're calling while True. Long story short, Tk() has it's own event loop. So, whenever you call some long running process it blocks this event loop and you can't do anything. You should probably use after

我在这里避免使用 global，只是给 window 一个属性.

I avoided using global here by just giving an attribute to window.

例如-

import tkinter

def stop():

    window.poll = False

def loop():

    if window.poll:
        print("Polling")
        window.after(100, loop)
    else:
        print("Stopped long running process.")

window = tkinter.Tk()
window.poll = True
window.title("Loop")
startButton = tkinter.Button(window, text = "Start", command = loop)
stopButton = tkinter.Button(window, text = "Pause", command = stop)
startButton.pack()
stopButton.pack()
window.mainloop()