命名视图

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <nav>
      <router-link to="/">邮箱设置</router-link>
      <router-link to="/page">个人信息设置</router-link>

    </nav>
    <router-view></router-view>
    <router-view name="help"></router-view>

  </div>
  <script src="../vue.js"></script>
  <script src="../vue-router.js"></script>
  <script>
    const com1 = {
      template: `
        <div>邮箱设置</div>
      `
    }
    const com2 = {
      template: `
        <div>个人信息设置</div>
      `
    }
    const com2Help = {
      template: `
        <div>个人信息设置帮助</div>
      `
    }

    const router = new VueRouter({
      routes: [
        {
          path: '/',
          component: com1
        }, {
          path: '/page',
          components: {
            default: com2,
            help: com2Help
          }
        }
      ]
    })
  
    const app = new Vue({
      el: '#app',
      router
    })
  </script>
</body>
</html>
命名视图将对应的路由组件显示在对应名字的router-view视图中