vue2 二级路由会变成空白，但是不报错，真的不知道为什么，求助

Question

{
    path: "/user/:id",
    name: "User",
    component: User,
    Children: [
      { path: "um", component: UM },
      { path: "ud", component: UD },
    ],
  },

<template>
  <div>
    <div>用户信息：</div>
    <div>用户id：{{ this.user.id }}</div>
    <div>用户名称：{{ this.user.name }}</div>
    <div>用户性别：{{ this.user.sex }}</div>
    <div>用户邮箱：{{ this.user.email }}</div>
    <router-view></router-view>
  </div>
</template>

Answer 1

children 打成大写字母？