9.3 线程间通信 python---Event    作者:xieaotian发表于2009-06-05 16:53:14

	   

	   # -*- coding:utf-8 -*-

# file:event.py

#

import threading

import time

class mythread(threading.Thread):

   def __init__(self, threadname):

      threading.Thread.__init__(self, name = threadname)

   def run(self):

      global event

      print event.isSet()

      if event.isSet():

         event.clear()

         event.wait()

         print self.getName()

      else:

         print self.getName()

         event.set()

event = threading.Event()

event.set()

tl = []

for i in range(10):

   t = mythread(str(i))

   tl.append(t)



for i in tl:

   i.start()



>>> True      #线程0设置信号为真--> 先清除信号 -->等待

False           #线程1进入

1

0

True

False

3

2

True

False

5

4

True

False

7

6

True

False

9

8