python中的多线程----以2个线程卖票为例

#!/usr/bin/python# -*- coding: UTF-8 -*-#目标：线程1和线程2轮流切换卖100张票import timeimport threadingif __name__ == '__main__':con= threading.Condition()def job():global numcon.acquir

wickedvalley

1232人浏览 · 2016-08-21 18:25:40

wickedvalley · 2016-08-21 18:25:40 发布

#!/usr/bin/python
# -*- coding: UTF-8 -*-
#目标：线程1和线程2轮流切换卖100张票

import time

import threading

if __name__ == '__main__':
   con= threading.Condition()
   def job():
      global num
      con.acquire()
      con.notify()
      if num>=1:
         try:
            print "线程%s正在售卖%d" % (threading.current_thread().name, num)
            num -= 1
         finally:
            con.wait()                        #两个线程都会持有锁，且不会释放了
   def task():
      while True:
         job()

   t3=threading.Thread(target=task,name="线程1")
   t4=threading.Thread(target=task,name="线程2")
   t3.start()
   t4.start()