解决移动端延迟的问题

在head标签里

1.添加viewport meta标签，表示移动端
2.引入fastclick.js
3.加入js代码片段

// vue中添加到默认的index.html的head标签中
<meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no">
<script src="https://cdn.bootcss.com/fastclick/1.0.6/fastclick.min.js"></script>
<script>
  if ('addEventListener' in document) {
    document.addEventListener('DOMContentLoaded', function () {
      FastClick.attach(document.body);
    }, false);
  }
</script>