vue单项循环与渲染循环

<div id="app">
  <li>{{ message }}</li>
  <ol>
    <li v-for="site in respond">
      {{ site.total }}
    </li>
  </ol>
</div>


<script>
new Vue({
  el: '#app',
  data: {
message: 'Hello Vue.js!',
    respond: [
{
"total": "1.00",
"count": "1",
"pay_time": "1527903093"
},
{
"total": "2.00",
"count": "2",
"pay_time": "123456789"
},
    ] 
  }
})