import threading 
import time 
class mythread(threading.Thread): 
 def __init__(self,stopevt = None,File=None,name = 'subthread',Type ='event'): 
  threading.Thread.__init__(self) 
  self.stopevt = stopevt 
  self.name = name 
  self.File = File 
  self.Type = Type 
   
     
 def Eventrun(self): 
  while not self.stopevt.isSet(): 
   print self.name +' alive\n' 
   time.sleep(2) 
  if self.File: 
   print 'close opened file in '+self.name+'\n' 
   self.File.close() 
  print self.name +' stoped\n' 
  
 def Daemonrun(self): 
  D = mythreadDaemon(self.File) 
  D.setDaemon(True) 
  while not self.stopevt.isSet(): 
   print self.name +' alive\n' 
   time.sleep(2) 
  print self.name +' stoped\n' 
 def run(self): 
  if self.Type == 'event': self.Eventrun() 
  else: self.Daemonrun() 
class mythreadDaemon(threading.Thread): 
 def __init__(self,File=None,name = 'Daemonthread'): 
  threading.Thread.__init__(self) 
  self.name = name 
  self.File = File 
 def run(self): 
  while True: 
   print self.name +' alive\n' 
   time.sleep(2) 
  if self.File: 
   print 'close opened file in '+self.name+'\n' 
   self.File.close() 
  print self.name +' stoped\n' 
   
def evtstop(): 
 stopevt = threading.Event() 
 FileA = open('testA.txt','w') 
 FileB = open('testB.txt','w') 
 A = mythread(stopevt,FileA,'subthreadA') 
 B = mythread(stopevt,FileB,'subthreadB') 
 print repr(threading.currentThread())+'alive\n' 
 print FileA.name + ' closed"htmlcode">

-------stop subthread example with Event:---------- 
<_MainThread(MainThread, started 2436)>alive 
testA.txt closed"font-size: large">总结

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