下面幾個例子關於tkinter介面更新的，簡單易懂，分享一下。
class stopwatch(frame): '''實現乙個秒錶部件''' msec = 50 def __init__(self, parent=none, **kw): frame.__init__(self, parent, kw) self._start = 0.0 self._elapsedtime = 0.0 self._running = false self.timestr = strin**ar() self.makewidgets() self.flag = true def makewidgets(self): '''製作時間標籤''' l = label(self, textvariable = self.timestr) self._settime(self._elapsedtime) l.pack(fill = x, expand = no, pady = 2, padx = 2) def _update(self): self._elapsedtime = time.time() - self._start self._settime(self._elapsedtime) self._timer = self.after(self.msec, self._update) def _settime(self, elap): '''將時間格式改為 分：秒：百分秒''' minutes = int(elap/60) seconds = int(elap-minutes*60.0) hseconds = int((elap - minutes*60.0 - seconds) *100) self.timestr.set('%2d:%2d:%2d' %(minutes, seconds, hseconds)) def start(self): if not self._running: self._start = time.time() - self._elapsedtime self._update() self._running = true def stop(self): '''停止秒錶''' if self._running: self.after_cancel(self._timer) self._elapsedtime = time.time() - self._start self._settime(self._elapsedtime) self._running = false def reset(self): '''重設秒錶''' self._start = time.time() self._elapsedtime = 0.0 self._settime(self._elapsedtime) def stopwatch(self): if self.flag == true: self.pack(side = top) button(self, text = 'start', command = self.start).pack(side = left) button(self, text = 'stop', command = self.stop).pack(side = left) button(self, text = 'reset', command = self.reset).pack(side = left) button(self, text = 'quit', command = self.quit).pack(side = left) self.flag = false class watch(frame): msec = 1000 def __init__(self, parent=none, **kw): frame.__init__(self, parent, kw) self._running = false self.timestr1 = strin**ar() self.timestr2 = strin**ar() self.makewidgets() self.flag = true def makewidgets(self): l1 = label(self, textvariable = self.timestr1) l2 = label(self, textvariable = self.timestr2) l1.pack() l2.pack() def _update(self): self._settime() self.timer = self.after(self.msec, self._update) def _settime(self): today1 = str(time.strftime('%y-%m-%d', time.localtime(time.time()))) time1 = str(time.strftime('%h:%m:%s', time.localtime(time.time()))) self.timestr1.set(today1) self.timestr2.set(time1) def start(self): self._update() self.pack(side = top) if __name__ == '__main__': def main(): root = tk() root.geometry('250x150') frame1 = frame(root) frame1.pack(side = bottom) sw = stopwatch(root) stpwtch = button(frame1, text = '秒錶', command = sw.stopwatch) stpwtch.pack(side = right) mw = watch(root) mywatch = button(frame1, text = '時鐘', command = mw.start) mywatch.pack(side = left) root.mainloop() main()
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