import Vue from "vue"import Router from "vue-router"import Homepage from "@/components/Homepage"Vue.use(Router)export default new Router({  routes: [    {      path: "/",      component: Homepage,    },    {      path:"*",      component:()=>import("../views/404.vue")    }  ]})

<template>    <div>        <p>            頁面將在<span>{{ time }}</span>秒后自動跳轉首頁，<br>            您也可以點擊這里跳轉<a href="/">首頁</a>        </p>    </div></template><script>// 這里可以導入其他文件（比如：組件，工具js，第三方插件js，json文件，圖片文件等等）export default {    name: "",    components: {    },    // 定義屬性    data() {        return {            time: "10",            time_end: null        }    },    // 計算屬性，會監(jiān)聽依賴屬性值隨之變化    computed: {},    // 監(jiān)控data中的數(shù)據(jù)變化    watch: {},    // 方法集合    methods: {        GoIndex() {            let _t = 9            this.time_end = setInterval(() => {                if (_t !== 0) {                    this.time = _t--;                } else {                    this.$router.replace("/")                    clearTimeout(this.time_end)                    this.time_end = null                }            }, 1000)        }    },    // 生命周期 - 創(chuàng)建完成（可以訪問當前this實例）    created() {        this.GoIndex()    },    // 生命周期 - 掛載完成（可以訪問DOM元素）    mounted() {    },    beforeCreate() { }, // 生命周期 - 創(chuàng)建之前    beforeMount() { }, // 生命周期 - 掛載之前    beforeUpdate() { }, // 生命周期 - 更新之前    updated() { }, // 生命周期 - 更新之后    beforeDestroy() { }, // 生命周期 - 銷毀之前    destroyed() {        clearTimeout(this.time_end)        this.time_end = null    }, // 生命周期 - 銷毀完成    activated() { }, // 如果頁面有keep-alive緩存功能，這個函數(shù)會觸發(fā)}</script><style scoped>.not_found {    width: 100%;    height: 100%;    background: url("../../static/img/404.gif") no-repeat;    background-position: center;    background-size: cover;    p {        position: absolute;        top: 50%;        left: 20%;        transform: translate(-50%, 0);        color: #fff;        span{            color: orange;            font-family: "仿宋";            font-size: 25px;        }        a {            font-size: 30px;            color: aqua;            text-decoration: underline;        }    }}</style>

{      path:"*",      component:()=>import("../views/404.vue")    }

// plan on directly navigating to the not-found route using its name{ path: "/:pathMatch(.*)*", name: "not-found", component: NotFound },// if you omit the last `*`, the `/` character in params will be encoded when resolving or pushing{ path: "/:pathMatch(.*)", name: "bad-not-found", component: NotFound },

...export default new Router({  routes: [    ...，    {      path:"/:pathMatch(.*)*",      component:()=>import("../views/404.vue")    }    //或者     {      path:"/:pathMatch(.*)",      component:()=>import("../views/404.vue")    }  ]})