index.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>FantasyGao's Blog</title>
    <link rel="stylesheet" href="/static/stylesheet/bootstrap.css" >
    <link rel="stylesheet" href="/static/stylesheet/vue-multiselect.min.css" >
    <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
  </head>
  <body>
    <div id="app"></div>
    <!-- built files will be auto injected -->
    <script>
      window.onload = function(){
        if (navigator.appName === 'Microsoft Internet Explorer') { //判断是否是IE浏览器
            if (navigator.userAgent.match(/Trident/i) && navigator.userAgent.match(/MSIE [5-8].0/i)) { 
              //console.info(navigator.userAgent)
              document.getElementById("app").innerHTML="浏览器不支持，请升级浏览器或者使用其他浏览器打开!";
              document.getElementById("app").style.fontSize=22+'px'
            }
        }
      }
    </script>
  </body>
</html>