<!DOCTYPE?html><html><head><meta?charset="UTF-8"><title>Document</title><link?rel="stylesheet"?href="style.css"><script?type="text/javascript"?src="https://cdn.bootcss.com/vue/2.2.2/vue.min.js"></script></head><body><div?class="{{?classValue?}}">{{?innerText?}}{{?classValue?}}</div><script?type="text/javascript"?src="script.js"></script></body></html>.app{ color:?red;}window.onload?=?function(){ var?dataList?=?{ classValue:'app', innerText:'大家好，哈哈' }; new?Vue({ el:'div', data:dataList });}想給div綁定一個(gè)class為app，這樣為什么不能綁定上？
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