import?urllib2 from?bs4?import?BeautifulSoup url?=?'http://baike.baidu.com/view/21087.htm' response?=?urllib2.urlopen(url) if?response.getcode()?!=?200: ????print?'error' html_cont?=?response.read() soup?=?BeautifulSoup(html_cont,?'html.parser',?from_encoding="utf-8") #?<dd?class="lemmaWgt-lemmaTitle-title"><h1>.com</h1> #print?html_cont title_node?=?soup.find('dd',?class_="lemmaWgt-lemmaTitle-title") print?title_node.find('h1').get_text()下面是報錯Traceback?(most?recent?call?last): ??File?"/home/kinredon/PycharmProjects/imooc2.7/test/testbaike.py",?line?16,?in?<module> ????print?title_node.find('h1').get_text() AttributeError:?'NoneType'?object?has?no?attribute?'find'經過多次測試，問題就出在soup.find()那，這個該怎么解決啊