Python 简单爬虫

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!'