python 多线程之thread
#! /usr/bin/env python # -*- coding:utf-8 -*- from threading import thread import subprocess from queue import queue num_threads = 3 ips = ['10.108.100.174', '119.75.218.77', '127.0.0.1'] q = queue() def pingit(i, queue): while true: ip = queue.get() print thread %s is pinging %s % (i, ip) ret = subprocess.call('ping -c 3 %s' % ip, shell=true, stdout=open('/dev/null','w'))#正常则返回0，异常则返回1；stdout=open('/dev/null','w')屏蔽ping具体细节信息 if ret != 0: print %s is down % ip queue.task_done() for i in xrange(num_threads):#xrang比range好 t = thread(target=pingit, args=(i, q)) t.setdaemon(true)#设置了setdaemon则线程会随着主线程关闭而关闭，python中，主线程结束后，会默认等待子线程结束后，主线程才退出 t.start() for ip in ips: q.put(ip) print main thread is waiting... q.join() print done...