Python闯关2

4.linklist
不断地抓网页，提取数字，然后更新网址即可

# coding:utf-8
import urllib2
import re


def next_page(p):
    text = urllib2.urlopen('http://www.pythonchallenge.com/pc/def/linkedlist.php?nothing=%s' % p).read()
    m = re.match(r".*?([0-9]+)", text)
    print m.group(0)
    if not m: print text
    return m.group(1)


p = 80992
next_page(p)
for i in range(400): p = next_page(p)