const db = [ { "label": "zhugeliang", "value": "1" }, { "label": "zhongwuyan", "value": "2" }, { "label": "buzhihuowu", "value": "3" }, { "label": "zhongkui", "value": "4" }, { "label": "luna", "value": "5" }, { "label": "wangzhaojun", "value": "6" } ]; module.exports = function(req, res) { const term = req.query.term || ''; res.json({ status: 0, msg: '', data: term ? db.filter(function(item) { return term ? ~item.label.indexOf(term) : false; }) : db }); }