Remove excess files

src/router/modules/charts.js

-/** When your routing table is too long, you can split it into small modules**/
-
-import Layout from '@/views/layout/Layout'
-
-const chartsRouter = {
-  path: '/charts',
-  component: Layout,
-  redirect: 'noredirect',
-  name: 'Charts',
-  meta: {
-    title: 'charts',
-    icon: 'chart'
-  },
-  children: [
-    {
-      path: 'keyboard',
-      component: () => import('@/views/charts/keyboard'),
-      name: 'KeyboardChart',
-      meta: { title: 'keyboardChart', noCache: true }
-    },
-    {
-      path: 'line',
-      component: () => import('@/views/charts/line'),
-      name: 'LineChart',
-      meta: { title: 'lineChart', noCache: true }
-    },
-    {
-      path: 'mixchart',
-      component: () => import('@/views/charts/mixChart'),
-      name: 'MixChart',
-      meta: { title: 'mixChart', noCache: true }
-    }
-  ]
-}
-
-export default chartsRouter

src/router/modules/nested.js

-/** When your routing table is too long, you can split it into small modules**/
-
-import Layout from '@/views/layout/Layout'
-
-const nestedRouter = {
-  path: '/nested',
-  component: Layout,
-  redirect: '/nested/menu1/menu1-1',
-  name: 'Nested',
-  meta: {
-    title: 'nested',
-    icon: 'nested'
-  },
-  children: [
-    {
-      path: 'menu1',
-      component: () => import('@/views/nested/menu1/index'), // Parent router-view
-      name: 'Menu1',
-      meta: { title: 'menu1' },
-      redirect: '/nested/menu1/menu1-1',
-      children: [
-        {
-          path: 'menu1-1',
-          component: () => import('@/views/nested/menu1/menu1-1'),
-          name: 'Menu1-1',
-          meta: { title: 'menu1-1' }
-        },
-        {
-          path: 'menu1-2',
-          component: () => import('@/views/nested/menu1/menu1-2'),
-          name: 'Menu1-2',
-          redirect: '/nested/menu1/menu1-2/menu1-2-1',
-          meta: { title: 'menu1-2' },
-          children: [
-            {
-              path: 'menu1-2-1',
-              component: () => import('@/views/nested/menu1/menu1-2/menu1-2-1'),
-              name: 'Menu1-2-1',
-              meta: { title: 'menu1-2-1' }
-            },
-            {
-              path: 'menu1-2-2',
-              component: () => import('@/views/nested/menu1/menu1-2/menu1-2-2'),
-              name: 'Menu1-2-2',
-              meta: { title: 'menu1-2-2' }
-            }
-          ]
-        },
-        {
-          path: 'menu1-3',
-          component: () => import('@/views/nested/menu1/menu1-3'),
-          name: 'Menu1-3',
-          meta: { title: 'menu1-3' }
-        }
-      ]
-    },
-    {
-      path: 'menu2',
-      name: 'Menu2',
-      component: () => import('@/views/nested/menu2/index'),
-      meta: { title: 'menu2' }
-    }
-  ]
-}
-
-export default nestedRouter

src/views/nested/menu1/index.vue

-<template >
-  <div style="padding:30px;">
-    <el-alert :closable="false" title="menu 1">
-      <router-view />
-    </el-alert>
-  </div>
-</template>

src/views/nested/menu1/menu1-1/index.vue

-<template >
-  <div style="padding:30px;">
-    <el-alert :closable="false" title="menu 1-1" type="success">
-      <router-view />
-    </el-alert>
-  </div>
-</template>

src/views/nested/menu1/menu1-2/index.vue

-<template>
-  <div style="padding:30px;">
-    <el-alert :closable="false" title="menu 1-2" type="success">
-      <router-view />
-    </el-alert>
-  </div>
-</template>

src/views/nested/menu1/menu1-2/menu1-2-1/index.vue

-<template functional>
-  <div style="padding:30px;">
-    <el-alert :closable="false" title="menu 1-2-1" type="warning" />
-  </div>
-</template>

src/views/nested/menu1/menu1-2/menu1-2-2/index.vue

-<template functional>
-  <div style="padding:30px;">
-    <el-alert :closable="false" title="menu 1-2-2" type="warning" />
-  </div>
-</template>

src/views/nested/menu1/menu1-3/index.vue

-<template functional>
-  <div style="padding:30px;">
-    <el-alert :closable="false" title="menu 1-3" type="success" />
-  </div>
-</template>

src/views/nested/menu2/index.vue

-<template>
-  <div style="padding:30px;">
-    <el-alert :closable="false" title="menu 2" />
-  </div>
-</template>