Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
我已经在vsocde里把第21行的代码放到第16行前面了，也保存了，并重启开发服务器了和清楚浏览器的缓存了
解决了。
