<body>
<div id="parent">
<user-profile ref="profile"></user-profile>
</div>
<script>
Vue.component(‘user-profile‘,{
template:‘<div></div>‘
})
var parent = new Vue({
el:"#parent"
})
var child = parent.$refs.profile
console.log(child)
</script>
</body>
原文：http://www.cnblogs.com/ItIsInteresting/p/7744877.html