<template>
  <div class="hello">
    <h1>{{ msg }}</h1>
    <h2>Foo</h2>
    <div v-for ="(item, index) in list">
    <!--<p>{{item }}</p>-->
    <h1 v-show="false">{{a[index] = item.bb}}</h1>
     <!-- <h1>index:{{index}}</h1>-->
    </div>
    <h2>a:{{a}}</h2>
    <h2>{{cc}}</h2>
    <!--<button v-on:click="cc">点击</button>-->

  </div>
</template>

<script>
export default {
  name: 'foo',
  data () {
    return {
      msg: '这儿是Foo',
      list:[{
          insertId: 'asfasf252',
          bb:29
      },{
        insertId: '2652',
         bb:20
      },{
        insertId: '996',
         bb:18
      }],
      a:[]
    }
  },
  computed:{
      cc: function(){
          var sum = 0;
          for(var i= 0 ;i< this.a.length; i++) {
                sum += parseInt(this.a[i]);
          }
          return sum;
      }
  }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h1, h2 {
  font-weight: normal;
}

ul {
  list-style-type: none;
  padding: 0;
}

li {
  display: inline-block;
  margin: 0 10px;
}

a {
  color: #42b983;
}
</style>