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安装 vue element admin 的时候，默认带入了很多路由，模板，mock，api 等。如果从 0 开始，就需要去掉这些多余的东西。

操作一波

src/api 删除下边的文件，只留下 role.js 和 user.js
.
├── role.js
└── user.js

src/components 组件暂不做处理，随着项目发展，某些组件还是很有用的。

src/router/modules/ 全删掉（如果需要，可后边对比补充）

src/router/index.js 修改成如下（其实就是去掉那些不想要的）

import Vue from 'vue'
import Router from 'vue-router'

Vue.use(Router)

/* Layout */
import Layout from '@/layout'
/**
 * Note: sub-menu only appear when route children.length >= 1
 * Detail see: https://panjiachen.github.io/vue-element-admin-site/guide/essentials/router-and-nav.html
 *
 * hidden: true                   if set true, item will not show in the sidebar(default is false)
 * alwaysShow: true               if set true, will always show the root menu
 *                                if not set alwaysShow, when item has more than one children route,
 *                                it will becomes nested mode, otherwise not show the root menu
 * redirect: noRedirect           if set noRedirect will no redirect in the breadcrumb
 * name:'router-name'             the name is used by <keep-alive> (must set!!!)
 * meta : {
    roles: ['admin','editor']    control the page roles (you can set multiple roles)
    title: 'title'               the name show in sidebar and breadcrumb (recommend set)
    icon: 'svg-name'/'el-icon-x' the icon show in the sidebar
    noCache: true                if set true, the page will no be cached(default is false)
    affix: true                  if set true, the tag will affix in the tags-view
    breadcrumb: false            if set false, the item will hidden in breadcrumb(default is true)
    activeMenu: '/example/list'  if set path, the sidebar will highlight the path you set
  }
 */

/**
 * constantRoutes
 * a base page that does not have permission requirements
 * all roles can be accessed
 */
export const constantRoutes = [
  {
    path: '/redirect',
    component: Layout,
    hidden: true,
    children: [
      {
        path: '/redirect/:path(.*)',
        component: () => import('@/views/redirect/index')
      }
    ]
  },
  {
    path: '/login',
    component: () => import('@/views/login/index'),
    hidden: true
  },
  {
    path: '/404',
    component: () => import('@/views/error-page/404'),
    hidden: true
  },
  {
    path: '/401',
    component: () => import('@/views/error-page/401'),
    hidden: true
  },
  {
    path: '/',
    component: Layout,
    redirect: '/dashboard',
    children: [
      {
        path: 'dashboard',
        component: () => import('@/views/dashboard/index'),
        name: '仪表盘',
        meta: { title: '仪表盘', icon: 'dashboard', affix: true }
      }
    ]
  }
]

/**
 * asyncRoutes
 * the routes that need to be dynamically loaded based on user roles
 */
export const asyncRoutes = [
  {
    path: '/permission',
    component: Layout,
    redirect: '/permission/page',
    alwaysShow: true, // will always show the root menu
    name: 'Permission',
    meta: {
      title: '权限控制',
      icon: 'lock',
      roles: ['admin', 'editor'] // you can set roles in root nav
    },
    children: [
      {
        path: 'page',
        component: () => import('@/views/permission/page'),
        name: 'PagePermission',
        meta: {
          title: 'Page Permission',
          roles: ['admin'] // or you can only set roles in sub nav
        }
      },
      {
        path: 'directive',
        component: () => import('@/views/permission/directive'),
        name: 'DirectivePermission',
        meta: {
          title: 'Directive Permission'
          // if do not set roles, means: this page does not require permission
        }
      },
      {
        path: 'role',
        component: () => import('@/views/permission/role'),
        name: 'RolePermission',
        meta: {
          title: 'Role Permission',
          roles: ['admin']
        }
      }
    ]
  },
  {
    path: 'baidu',
    component: Layout,
    children: [
      {
        path: 'https://www.baidu.com',
        meta: { title: '百度', icon: 'link' }
      }
    ]
  },

  // 404 page must be placed at the end !!!
  { path: '*', redirect: '/404', hidden: true }
]

const createRouter = () => new Router({
  mode: 'history', // require service support
  base: '/admin/',
  scrollBehavior: () => ({ y: 0 }),
  routes: constantRoutes
})

const router = createRouter()

// Detail see: https://github.com/vuejs/vue-router/issues/1234#issuecomment-357941465
export function resetRouter() {
  const newRouter = createRouter()
  router.matcher = newRouter.matcher // reset router
}

export default router

然后 src/views 里边的删除掉，留下边这些：

.
├── dashboard
├── error-page
├── login
├── permission
└── redirect

如果有报错，处理报错，就是引入一些文件，之前被删了这些。

继续删 icons，icon 都是一个一个的 svg ，根据自己的需要，留着几个用到的，其他的都可以干掉吧。先把之前的 git 一下，后边删多了，还可以 checkout。

win 下查看 svg https://www.cnblogs.com/fanful/p/12404342.html

git add .
git commit -m '删掉冗余的路由，view，api 这些'

如果有强迫症，喜欢干净的可以一个一个的比，看。还有 npm remove 不需要的包。

这一步，其实，也可以在刚下载下来的时候做。

下一步，安装 bootstrap