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#coding=utf8
import urllib2
import codecs
import re
import time
from lxml import etree

url1  = 'http://521xunlei.com/portal.php'
path1 = '//*[@id="portal_block_62_content"]/div/ul/li[1]/a/@href'
path3 = '//*[@class="t_f"]/font/text()'

def geturlinfo(url,path,x):
	request  = urllib2.Request(url)
	response = urllib2.urlopen(request)
	result 	 = response.read()
	restree	 = etree.HTML(result)
	nodes 	 = restree.xpath(path)
	if x == '1':
		return nodes[0]
	else:
		i=0
		open('thunder.txt','w').write('')
		for node in nodes:
			if re.search(':',node):
				INFO = str(i)+': '+node.replace('\r\n','')
				print INFO
				open('thunder.txt','a').write(INFO.encode('utf8')+'\n')
				i+=1

if __name__ == '__main__':
	while True:
		print '===================start===================\n'
		url2 = 'http://'+url1.replace('http://','').split('/')[0]+'/'+geturlinfo(url1, path1,'1')
		print 'GET From: '+url2
		geturlinfo(url2, path3, '0')
		time.sleep(24*3600)

		#starts-with(@id,"test") id已test开头的 

		#首先获取对应div 再次xpath string(.) 组合