将整个应用放在一个组件中是不切实际的。相反，我们可以从其他文件导入组件并将它们包含在我们的标记中。

¥It would be impractical to put your entire app in a single component. Instead, we can import components from other files and include them in our markup.

在 App.svelte 顶部添加一个 <script> 标签，导入 Nested.svelte...

¥Add a <script> tag to the top of App.svelte that imports Nested.svelte...

<script>
	import Nested from './Nested.svelte';
</script>

<script lang="ts">
	import Nested from './Nested.svelte';
</script>

...并包含 <Nested /> 组件：

¥...and include a <Nested /> component:

<p>This is a paragraph.</p>
<Nested />

请注意，即使 Nested.svelte 具有 <p> 元素，App.svelte 中的样式也不会泄漏。

¥Notice that even though Nested.svelte has a <p> element, the styles from App.svelte don’t leak in.

组件名称大写，以区别于 HTML 元素。