<script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
</head>
<body>
<div id="app">
<runoob :title="num"></runoob>
</div>
</body>
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Vue.component('runoob', {
template: '<h1>{{title}}自定义组件!</h1>',
props: {
title: [Number]
}
})
// 创建根实例
new Vue({
el: '#app',
data:{
num: 123
},
created() {
setTimeout(() => {
this.num = 456
}, 3000)
}
})