Section 1: vue3 configuration routing

1. Install the router plug-innpm install vue-router@4 or yarn add vue-router@4
2. Create a new router folder and index.js in the router: it mainly configures routing

import {createRouter,createWebHashHistory} from 'vue-router'
// 1.新的页面导入进来
import Home from '../view/Home.vue'
import Login from '../view/Login.vue'
// 2.写路由的地方
const routes = [
    {
        path:'/',
        name:'home',
        component:Home
    },
    {
        path:'/login',
        name:'login',
        component:Login,
    }
];
const router = createRouter({
    //  3.内部提供了 history 模式的实现。为了简单起见，我们在这里使用 hash 模式。
    history: createWebHashHistory(),
    routes, // `routes: routes` 的缩写
  })
  
  export default router;
 

3. In the main.js page, import routing and mount routing.

import { createApp } from 'vue'
import './style.css'
import App from './App.vue'
// 导入路由
import router from './router/index'

 //创建并挂载根实例
 const app =createApp(App)
 app.use(router)
//  挂载根应用
 app.mount('#app')

4. Test it to see if the routing is configured successfully. Just create a page and write something in it.

这是Home页面

<template>
  <h1>用户页面</h1>
</template>

<script>
export default {

}
</script>

<style>

</style>

5. The last step and the most critical step is to use it on the app page<router-view></router-view> to display the effect of the sub-component
renderings