def links(self):
    classin_re = re.compile('https\\:\\/\\/www\\.eeo\\.cn\\/live\\.php\\?lessonKey\\=[0-9a-zA-Z]+')
    links = classin_re.findall(self.html)
    return links
def links(self):
    classin_re = re.compile('https\\:\\/\\/www\\.eeo\\.cn\\/live\\.php\\?lessonKey\\=[0-9a-zA-Z]+')
    links = classin_re.findall(self.html)
    return links