动态组件和v-once命令
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>slot</title>
<script src="./vue.js"></script>
</head>
<!-- v-once加载到内存，重复使用 -->
<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">change</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>'
})
var 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>
vue 组件动态绑定和v-once
