import os

import time

import webbrowser as web

import random

count = random.randint(20,40)

j = 0

while j < count:

	i = 0

	while i <= 5:

		web.open_new_tab('http://www.cnblogs.com/evilxr/p/3764287.html')

		i = i + 1

		time.sleep(1)       #浏览器暂停1秒

	else:

		os.system('killall firefox')    #关闭浏览器

	j = j + 1

	print j,'times closing Browser!'