Vue2.x之动态组件与v-once指令

最新推荐文章于 2025-07-11 16:04:01 发布

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>动态组件</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="root">
    <component :is="type"></component>
<!--<child-one v-if="type==='child-one'"></child-one>-->
<!--<child-two v-if="type==='child-two'"></child-two>-->
    <button @click="handleClick">切换</button>
</div>
<script>
Vue.component('child-one',{
    template:'<div v-once>child-one</div>'
});
Vue.component('child-two',{
    template:'<div v-once>child-two</div>'
});
let vm = new Vue({
    el:'#root',
    data:{
        type:'child-one'
    },
    methods:{
        handleClick:function () {
            this.type = (this.type==='child-one'?'child-two':'child-one')
        }
    }

})

</script>
</body>
</html>