我们还可以绑定到 window 的某些属性，例如 scrollY：
¥We can also bind to certain properties of window, such as scrollY:
App
<svelte:window bind:scrollY={y} />你可以绑定到的属性列表如下：
¥The list of properties you can bind to is as follows:
innerWidthinnerHeightouterWidthouterHeightscrollXscrollYonline—window.navigator.onLine的别名¥
online— an alias forwindow.navigator.onLine
除 scrollX 和 scrollY 之外的所有文件都是只读的。
¥All except scrollX and scrollY are readonly.
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<script>
let y = $state(0);
</script>
<svelte:window />
<span>depth: {y}px</span><style>
:global(body) {height: 400vw;
background: url(./deepsea.webp);
background-size: cover;
}
span {position: fixed;
font-size: 2em;
color: white;
font-variant: tabular-nums;
}
</style>