<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no, maximum-scale=1.0, minimum-scale=1.0" />
    <title></title>
    <!-- 优化：vue渲染未完成之前，先加一个css动画 -->
    <style>
      #loadingPage {
        background-color: #dedede;
        font-size: 12px;
      }
      .base {
        height: 9em;
        left: 50%;
   