def collect_num(self):
        """获取答案收藏数

        :return:  答案收藏数量
        :rtype: int
        """
        element = self.soup.find("a", {
            "data-za-a": "click_answer_collected_count"
        })
        if element is None:
            return 0
        else:
            return int(element.get_text())
获取答案收藏数

        :return:  答案收藏数量
        :rtype: int