def extract_detail_url(self, html):
"""
分析列表页面,解析出detail url
:param content:
:return:list of detail url
"""
hrefs = list()
for a in PQ(html)('.questions_detail_con>dl>dt>a'):
href = PQ(a).attr('href').strip()
if href.startswith('/'):
href = self.BASE_URL + href
hrefs.append(href)
return hrefs
