如何在Vue中访问来自父项的子元件数据？

<template>
  <div>
    <child-component :data="data"></child-component>
  </div>
</template>

<script>
import ChildComponent from './ChildComponent.vue';

export default {
  components: {
    ChildComponent
  },
  data() {
    return {
      data: '父组件的数据'
    };
  }
};
</script>

<template>
  <div>
    <p>来自父组件的数据：{{ data }}</p>
  </div>
</template>

<script>
export default {
  props: {
    data: {
      type: String,
      required: true
    }
  }
};
</script>