router初始化

import { createRouter, createWebHistory } from 'vue-router'
import type { RouteRecordRaw } from 'vue-router'

const routes: Array<RouteRecordRaw> = [
  {
    path: '/',
    component: () => import('../components/login.vue')
  }
]

const router = createRouter({
  history: createWebHistory(),
  routes
})

export default router

2.在mian.js中引入，app.use()插件