我是使用mysql数据库，使用sequelize 作为代码与数据库的桥接库。 当我直接在server 端打印： console.log(result.total_wx_vote) // undefined ------> 就会出现undefined 但是我若是通过 下面就会出现正确的结果。 console.log(result.dataValues.total_wx_vote)

 var result =yield  mysqldb.Vote.find({
                attributes: [
                    [Sequelize.fn('SUM', Sequelize.col('wx_vote')), 'total_wx_vote'],
                    [Sequelize.fn('COUNT', Sequelize.literal('distinct `userid`')), 'total_voted_users']
                ],
                where: {
                    activity_id: req.query.activity_id
                },
        });
		console.log(result.total_wx_vote)   // undefined
		console.log(result.dataValues.total_wx_vote)