#!/usr/bin/python
# -*- coding: UTF-8 -*-

import HTMLParser

class UrlParser(HTMLParser.HTMLParser):
    def __init__(self):
        HTMLParser.HTMLParser.__init__(self)
        self.urls = []
    def handle_starttag(self, tag, attrs):
        if tag == 'a':
            for name,value in attrs:
                if name == 'href':
                    self.urls.append(value)
    def geturls(self):
        return self.urls

if __name__ == '__main__':
    urls = []
    url = UrlParser()
    url.feed('1111111111<a href="http://www.bccn.net">BCCN</a>2222222<a href="http://bbs.bccn.net">BCCN.BBS</a>333333333')
    urls += url.geturls()
    print urls

#!/usr/bin/python
# -*- coding: UTF-8 -*-

from pyquery import PyQuery as pq

class UrlParser():
    def __init__(self):
        self.urls = []
    def feed(self,data):
        d = pq(data)
        if d.find('a'):
            #关于下面一行，我用d('a').attr('href')只能得到第一个URL，暂时只会用map，不知道有没有别的够pythonic的代码
            url = d('a').map(lambda i, e: pq(e)('a').attr('href'))
            for u in url:
                self.urls.append(u)
    def geturls(self):
        return self.urls

if __name__ == '__main__':
    urls = []
    url = UrlParser()
    url.feed('1111111111<a href="http://www.bccn.net">BCCN</a>2222222<a href="http://bbs.bccn.net">BCCN.BBS</a>333333333')
    urls += url.geturls()
    print urls

#!/usr/bin/python
# -*- coding: UTF-8 -*-

import re

class UrlParser():
    def __init__(self):
        self.urls = []
    def feed(self,data):
        url = re.findall(r'''<a(\s*)(.*?)(\s*)href(\s*)=(\s*)([\"\s]*)([^\"\']+?)([\"\s]+)(.*?)>''',data,re.S|re.I)
        for u in url:
            self.urls.append(u[6])
    def geturls(self):
        return self.urls

if __name__ == '__main__':
    urls = []
    url = UrlParser()
    url.feed('1111111111<a href="http://www.bccn.net">BCCN</a>2222222<a href="http://bbs.bccn.net">BCCN.BBS</a>333333333')
    urls += url.geturls()
    print urls