python 多线程实例

 #!/usr/bin/env python
 # -*- coding:utf-8 -*-
 import  Queue
 import  threading
 class ThreadPool(object):
     def __init__(self,max_num=20):
         self.queue=Queue.Queue(max_num)
         for i in xrange(max_num):
             self.queue.put(threading.Thread)
     def get_thread(self):
         return self.queue.get()
     def add_thread(self):
         return  self.queue.put(threading.Thread)
 pool = ThreadPool(10)
 def func(arg,p):
     print arg
     import time
     time.sleep(2)
     p.add_thread()
 for i in xrange(30):
     thread = pool.get_thread()
     t = thread(target=func,args=(i,pool))
     t.start()