vue路由

配置路由

 {
    path: '/about',
    name: 'about',
    component: () => import( '../views/AboutView.vue')
  }

在新建一个和上面路径下的一个组件的一个页面

    <template>
  <div>
      <h1>AboutView</h1>
      <router-link to="/childb/three">three</router-link>
      <router-view></router-view>
  </div>
</template>

<script>
export default {

}
</script>

<style>

</style>

入口页面配置

<template>
  <div id="app">
    <nav>
      <router-link to="/">Home</router-link> |
      <router-link to="/about">About</router-link> |
      <router-link to="/childa">childa</router-link> |
      <router-link to="/childb">childb</router-link> |
    </nav>
    <router-view />
  </div>
</template>

<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}

nav {
  padding: 30px;
}

nav a {
  font-weight: bold;
  color: #2c3e50;
}

nav a.router-link-exact-active {
  color: #42b983;
}
</style>

配置 二级路由

 {
    path: '/childb',
    name: 'childB',
    component: () => import( '../views/ChildB.vue'),
    children:[{
      path: 'three',
      name: 'three',
      component:()=>import('../views/threeView.vue')
    }]
  },

在一级路由下需要配置

  <router-link to="/childa/two">two</router-link>
      <router-view />

redirect：''这个方法可以让一进入页面就显示二级路由