如何向Vue JS组件传递数据？

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

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

export default {
  components: {
    ChildComponent
  },
  data() {
    return {
      parentData: 'Hello from parent component'
    };
  }
};
</script>

<template>
  <div>
    <p>{{ data }}</p>
  </div>
</template>

<script>
export default {
  props: ['data']
};
</script>