from urllib import requestimport html.parserclass zhuaqu(html.parser.HTMLParser):    blogHtml = ""    data = []    flag = 0    def getHtml(self):        res = request.urlopen("http://www.cnblogs.com")        self.blogHtml = res.read().decode(‘utf-8‘)    def handle_starttag(self, tag, attrs):        if(tag == "a"):            for attr in attrs:                if(attr[0] == "class" and attr[1] == "titlelnk"):                    self.flag = 1                    break        else:            pass    def handle_data(self, data):        if(self.flag == 1):            self.data.append(data.strip())            self.flag = 0        else:            pass    def show(self):        print(self.blogHtml)zhua = zhuaqu()zhua.getHtml()zhua.feed(zhua.blogHtml)for item in zhua.data:    print(item)