Use vue to make a small example to consolidate learning.
<body>
<div id="box">
<input type="text" v-model='command' @keyup.enter='add' />
<div v-show='list.length==0'>暂无留言</div>
<ul>
<li v-for="value in list"track-by=$index>{{value}}
<a href="javascript:;" @click='rm($index)'>删除</a>
</li>
</ul>
</div>
<script src="libs/vue.js"></script>
<script>
new Vue({
el:'#box',
data:{
command:'',
list:[]
},
methods:{
add:function(ev){
this.list.unshift(this.command)
this.command='';
},
rm:function(index){
this.list.splice(index,1)
}
}
})
</script>
</body>
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
