修改首页路由

src/router/routes.js

 export default [
   { path: '*', redirect: '/' },
-  { path: '/', redirect: '/app/tips/learning-tips' },
+  { path: '/', redirect: '/app/learn/course' },
   /* 学习系统 - 登录后，进入页面 */
   {
     path: '/app',