2016-12-30 84 views
-1

这种免费提供的代码是一个秒表GUI应用程序。在按下停止按钮,一个将如何分配分钟,秒和毫秒到单个变量作为M,S,MS?如何分配时间的秒表单位变量

对于初学者来说,我已经试过m = self.timestr.get()[0:2]在停止功能,但值始终是00,无论分钟数。

from Tkinter import * 
import time 

class StopWatch(Frame): 
    """ Implements a stop watch frame widget. """                
    def __init__(self, parent=None, **kw):  
     Frame.__init__(self, parent, kw) 
     self._start = 0.0  
     self._elapsedtime = 0.0 
     self._running = 0 
     self.timestr = StringVar()    
     self.makeWidgets()  

    def makeWidgets(self):       
     """ Make the time label. """ 
     l = Label(self, textvariable=self.timestr) 
     self._setTime(self._elapsedtime) 
     l.pack(fill=X, expand=NO, pady=2, padx=2)      

    def _update(self): 
     """ Update the label with elapsed time. """ 
     self._elapsedtime = time.time() - self._start 
     self._setTime(self._elapsedtime) 
     self._timer = self.after(50, self._update) 

    def _setTime(self, elap): 
     """ Set the time string to Minutes:Seconds:Hundreths """ 
     minutes = int(elap/60) 
     seconds = int(elap - minutes*60.0) 
     hseconds = int((elap - minutes*60.0 - seconds)*100)    
     self.timestr.set('%02d:%02d:%02d' % (minutes, seconds, hseconds)) 

    def Start(self):              
     """ Start the stopwatch, ignore if running. """ 
     if not self._running:   
      self._start = time.time() - self._elapsedtime 
      self._update() 
      self._running = 1  

    def Stop(self):         
     """ Stop the stopwatch, ignore if stopped. """ 
     if self._running: 
      self.after_cancel(self._timer)   
      self._elapsedtime = time.time() - self._start 
      self._setTime(self._elapsedtime) 
      self._running = 0 

    def Reset(self):         
     """ Reset the stopwatch. """ 
     self._start = time.time()   
     self._elapsedtime = 0.0 
     self._setTime(self._elapsedtime) 


def main(): 
    root = Tk() 
    sw = StopWatch(root) 
    sw.pack(side=TOP) 

    Button(root, text='Start', command=sw.Start).pack(side=LEFT) 
    Button(root, text='Stop', command=sw.Stop).pack(side=LEFT) 
    Button(root, text='Reset', command=sw.Reset).pack(side=LEFT) 
    Button(root, text='Quit', command=root.quit).pack(side=LEFT) 

    root.mainloop() 

if __name__ == '__main__': 
    main() 
+0

你可以简单地保存分钟,秒时间,你在定时器运行时重新计算,因此您不必稍后再进行转换。 –

+0

调试我的程序,为什么分钟,秒和毫秒具有0值,是因为在叫我的主程序'StopWatch'是因为我一直覆盖秒表插件的原因后。白痴! – Astrodude11

+0

我不明白这个问题。它已经计算了几小时,几分钟和几秒钟。 –

回答

1

_setTimer创建

minutes = int(elap/60) 
seconds = int(elap - minutes*60.0) 
hseconds = int((elap - minutes*60.0 - seconds)*100) 

所以使用self.minutesself.secondsself.hseconds,你将不必使用self.timestr.get()