@property<EOL><INDENT>@check_soup('<STR_LIT>')<EOL>def answer_num(self):<DEDENT>
answer_num_block = self.soup.find('<STR_LIT>', id='<STR_LIT>')<EOL>if answer_num_block is None:<EOL><INDENT>if self.soup.find('<STR_LIT>', class_='<STR_LIT:count>') is not None:<EOL><INDENT>return <NUM_LIT:1><EOL><DEDENT>else:<EOL><INDENT>return <NUM_LIT:0><EOL><DEDENT><DEDENT>return int(answer_num_block['<STR_LIT>'])<EOL>
获取问题答案数量.

        :return: 问题答案数量
        :rtype: int