js代码

<script type="text/javascript" src="js/vue.min.js"></script>
<script type="text/javascript">
(function(){
  var app = new Vue({
    el: '#app',
    data: {
      sequence: [] 
    },
    mounted() {
      this.sequence = new Array(Math.round(document.body.clientWidth/70)); 
    }
  });
})();
</script>