numbox 的方法不能用

[linhancai]

trafficstars

Uncaught TypeError: numbox.setValue is not a function at vt.opGoods (detail.html?nine_goods_commonid=867:963) at vt.n [as opGoods] (vue.js:6) at change (eval at $i (vue.js:7), :2:6735) at HTMLInputElement.t (vue.js:6) at Function.i.trigger (mui.min.js:6) at HTMLButtonElement. (mui.min.js:9) at Function.i.trigger (mui.min.js:6) at Object.e [as handle] (mui.min.js:6) at Object. (mui.min.js:6) at mui.min.js:6 opGoods @ detail.html?nine_goods_commonid=867:963 n @ vue.js:6 change @ VM2921:2 t @ vue.js:6 i.trigger @ mui.min.js:6 (anonymous) @ mui.min.js:9 i.trigger @ mui.min.js:6 e @ mui.min.js:6 (anonymous) @ mui.min.js:6 (anonymous) @ mui.min.js:6 i.each @ mui.min.js:6 i.doAction @ mui.min.js:6 m @ mui.min.js:6 z @ mui.min.js:6