...
<ul id="demo">
 <li v-for="item in list">{{item}}</div>
</ul>
...

new Vue({
 el:'#demo',
 data:{
 list=[0,1,2,3,4,5,6,7,8,9,10]
 },
 methods:{
 push:function(){
 this.list.push(11);
 this.nextTick(function(){
 alert('數據已經更新')
 });
 this.$nextTick(function(){
 alert('v-for渲染已經完成')
 })
 }
 }
})