def crawl(self,urls,depth=2):
for url in urls:
html = getPage(url)
if html is None or html == '' : continue
soup = BeautifulSoup(html)
url_list = []
for link in soup('a'):
url_str = link.get('href')
if url_str is None or url_str == '' : continue
elif url_str[0:4] == 'http' : url_list.append(url_str)
else : pass
critics={'李楠':{'一代宗师':'2.5','小时代':'3.5','钢铁侠':'2.0','蜘蛛侠':'3.5','重返地球':'2.5','007':'3.0'},
'宋瑶':{'一代宗师':'1.0','小时代':'3.5','超人':'1.0','蜘蛛侠':'2.5','星际穿越':'2.5','007':'2.0'},
'吴琼':{'一代宗师':'1.5','小时代':'2.5','钢铁侠':'3.0','蝙蝠侠':'2.5','星际穿越':'1.5','007':'1.0'},
'卞雪达':{'一代宗师':'2.0','小时代':'1.5','钢铁侠':'3.0','蜘蛛侠':'2.5','星际穿越':'1.5','007':'4.0','生化危机':'5.0'},
'卞冬至':{'一代宗师':'2.5','小时代':'4.0','超人':'3.0','蜘蛛侠':'1.5','星际穿越':'1.5','007':'3.0'},
'吴会来':{'一代宗师':'3.0','小时代':'1.0','钢铁侠':'3.5','蜘蛛侠':'4.0','星际穿越':'4.0','007':'2.0'},
'张薇':{'一代宗师':'4.0','小时代':'1.0','超人':'3.5','蜘蛛侠':'2.0','星际穿越':'3.0','007':'3.5','生化危机':'4.0'},
'尼培伦':{'一代宗师':'3.5','小时代':'2.5','钢铁侠':'4.0','蜘蛛侠':'3.0','重返地球':'2.0','007':'2.5'},
'石相扬':{'一代宗师':'4.5','小时代':'0.5','钢铁侠':'4.5','蜘蛛侠':'3.5','星际穿越':'2.5','007':'1.5'},
'王瑞元':{'一代宗师':'0.5','小时代':'4.5','超人':'1.0','蝙蝠侠':'3.5','星际穿越':'3.0','007':'3.0'},
'大宝':{'我爱你':'0.5','小时代3':'4.5','超人2':'1.0','蝙蝠侠2':'3.5'}}
url_base = 'http://zhidao.baidu.com'
url_resouce = '/question/1432695535674275539.html'
url_para = '?push=asking&entry=qb_home_new'
html = getPage(url_base+url_resouce+url_para)
if html is None or html == '':print 'html读取失败'
open('a.html','w+').write(html)
soup = BeautifulSoup(html)
url_list = []
for link in soup('a'):
url = link.get('href')
if url is None or url == '' : continue
if url[0] == '/' : url_list.append(url_base+url)
elif url[0:4] == 'http' : url_list.append(url)
else : pass
for url in url_list : print url