在我们迄今为止看到的所有示例中，<script> 块包含在初始化每个组件实例时运行的代码。对于绝大多数组件，这就是你所需要的。

¥In all the examples we’ve seen so far, the <script> block contains code that runs when each component instance is initialised. For the vast majority of components, that’s all you’ll ever need.

偶尔，你需要在单个组件实例之外运行一些代码。例如：从 上一练习 返回到我们的自定义音频播放器，你可以同时播放所有四个音轨。如果播放一个会停止所有其他的，那就更好了。

¥Very occasionally, you’ll need to run some code outside of an individual component instance. For example: returning to our custom audio player from a previous exercise, you can play all four tracks simultaneously. It would be better if playing one stopped all the others.

我们可以通过声明 <script module> 块来做到这一点。其中包含的代码将在模块首次评估时运行一次，而不是在实例化组件时运行。将其放在 AudioPlayer.svelte 的顶部（请注意，这是一个单独的脚本标记）：

¥We can do that by declaring a <script module> block. Code contained inside it will run once, when the module first evaluates, rather than when a component is instantiated. Place this at the top of AudioPlayer.svelte (note that this is a separate script tag):

<script module>
	let current;
</script>

现在组件可以在没有任何状态管理的情况下相互 ‘talk’：

¥It’s now possible for the components to ‘talk’ to each other without any state management:

<audio
	src={src}
	bind:currentTime={time}
	bind:duration
	bind:paused
	onplay={(e) => {
		const audio = e.currentTarget;

		if (audio !== current) {
			current?.pause();
			current = audio;
		}
	}}
	onended={() => {
		time = 0;
	}}
/>