练练正则

#!user/bin/python
# coding: utf-8
from bs4 import BeautifulSoup
import urllib
import re


def get_html(url):

    req = urllib.urlopen(url).read()
    return req

def handle_html(html):

    reg1 = re.compile(r'<span class="atc_title">.*?</span>',re.S)
    reg2 = re.compile(r'<span class="atc_title">s*<a title=".*" target="_blank" href="(?P<link>.*)">(?P<title>.*)</a></span>')
    list1 = re.findall(reg1,html)
    list2 = []
    for title in list1:
        n = re.search(reg2,title)
        print n.group('title') + 't' + n.group('link')
        list2.append(n.group('link'))
    return list2



def load_html(result):

    count = 0
    for link in result:
        count += 1
        urllib.urlretrieve(link,'D:Documents%s.html' % count)



if __name__ == '__main__':

    url = 'http://blog.sina.com.cn/s/articlelist_1191258123_0_1.html'
    html = get_html(url)
    result = handle_html(html)
    load_html(result)

（编辑：李大同）

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