元素可以有 in 或 out 指令，或两者兼有，而不是 transition 指令。将 fade 与 fly 一起导入...

¥Instead of the transition directive, an element can have an in or an out directive, or both together. Import fade alongside fly...

import { fade, fly } from 'svelte/transition';

...然后用单独的 in 和 out 指令替换 transition 指令：

¥...then replace the transition directive with separate in and out directives:

<p in:fly={{ y: 200, duration: 2000 }} out:fade>
	Flies in, fades out
</p>

在这种情况下，转换不会反转。

¥In this case, the transitions are not reversed.