Vue的route-view子页面调用父页面的函数详解

<router-view  v-on:getUser="getUser" :infoArray="infoArray"></router-view>

//data是子页面传过来的参数，如果不需要就不写
getUser(data){
   this.infoArray= 123;
},

props: ['infoArray'],
inject:['getUser'],
created() {
   this.$emit("getUser","如果需要传值，参数写在这里");
},

const router = new VueRouter({ 
  routes: [ 
    { 
      path: '/user/:userId', 
      name: 'user', 
      component: User 
    } 
  ] 
})

import Vue from 'vue'
import VueRouter from 'vue-router' 
Vue.use(VueRouter) 
const Home = { template: '<div>This is Home</div>' }
const Foo = { template: '<div>This is Foo</div>' }
const Bar = { template: '<div>This is Bar {{ $route.params.id }}</div>' }
 
const router = new VueRouter({
  mode: 'history',
  base: __dirname,
  routes: [
    { path: '/', name: 'home', component: Home },
    { path: '/foo', name: 'foo', component: Foo },
    { path: '/bar/:id', name: 'bar', component: Bar }
  ]
})
 
new Vue({
  router,
  template: `
    <div id="app">
      <h1>Named Routes</h1>
      <p>Current route name: {{ $route.name }}</p>
      <ul>
        <li><router-link :to="{ name: 'home' }">home</router-link></li>
        <li><router-link :to="{ name: 'foo' }">foo</router-link></li>
        <li><router-link :to="{ name: 'bar', params: { id: 123 }}">bar</router-link></li>
      </ul>
      <router-view class="view"></router-view>
    </div>
  `
}).$mount('#app')

<router-view class="view one"></router-view>
<router-view class="view two" name="a"></router-view>
<router-view class="view three" name="b"></router-view>

const router = new VueRouter({
  routes: [ 
    { 
      path: '/', 
      components: { 
        default: Foo, 
        a: Bar, 
        b: Baz 
      } 
    } 
  ] 
}) 

{ 
  path: '/settings', 
  // You could also have named views at the top 
  component: UserSettings, 
  children: [{ 
    path: 'emails',
    component: UserEmailsSubscriptions 
  }, {
 
    path: 'profile', 
    components: { 
      default: UserProfile, 
      helper: UserProfilePreview 
    } 
  }] 
}

<!-- UserSettings.vue -->
<div> 
  <h1>User Settings</h1> 
  <NavBar/> 
  <router-view/> 
  <router-view name="helper"/>
</div>