1,
npm install vconsole
let VConsole = require('../../node_modules/vconsole/dist/vconsole.min');
let vConsole = new VConsole();
2,
<script src="http://wechatfe.github.io/vconsole/lib/vconsole.min.js?v=3.2.0"></script>
<script>
window.vConsole = new window.VConsole();
</script>