@property<EOL><INDENT>@check_soup('<STR_LIT>')<EOL>def upvote_num(self):<DEDENT>
return int(self.soup.find(<EOL>'<STR_LIT>', class_='<STR_LIT>')['<STR_LIT>'])<EOL>
获取答案赞同数量.

        :return: 答案赞同数量
        :rtype: int