队列

#coding=utf8

import Queue

q = Queue.LifoQueue()
for i in range(5):
    q.put(i)

while not q.empty():
    print q.get()

print 

  

#coding=utf8

import Queue, threading

q = Queue.PriorityQueue()

class Job(object):
    def __init__(self, priority, description):
        self.priority = priority
        self.description = description
        print 'new job',description
    
    def __cmp__(self, other):
        return cmp(self.priority, other.priority)

q.put( Job(3, 'mid') )
q.put( Job(10, 'low') )
q.put( Job(1, 'import'))

def process_job(q):
    while True:
        n_j = q.get()
        print 'Processing job:%s \n' % n_j.description
        q.task_done()

works = [
    threading.Thread(target=process_job, args=(q,)),
    threading.Thread(target=process_job, args=(q,)),
    threading.Thread(target=process_job, args=(q,)),
]

for w in works:
    w.setDaemon(True)
    w.start()

q.join()

  

  • join:如在一个线程B中调用threada.join(),则threada结束后,线程B才会接着threada.join()往后运行。
  • setDaemon:主线程A启动了子线程B,调用b.setDaemaon(True),则主线程结束时,会把子线程B也杀死,与C/C++中得默认效果是一样的。
posted @ 2013-01-18 01:27  践道者  阅读(189)  评论(0编辑  收藏  举报