14 - 动态CSS

[CodeZzhang]

1. 第一种方法

<script setup>
import { ref } from "vue"
const theme = ref("red")

const colors = ["blue", "yellow", "red", "green"]

setInterval(() => {
  theme.value = colors[Math.floor(Math.random() * 4)]
}, 1000)

</script>

<template>
  <p :style="{'--color': theme}">hello</p>
</template>

<style scoped>
p {
  color: var(--color)
}
</style>

2.第二种方法

<script setup>
import { ref } from "vue"
const theme = ref("red")

const colors = ["blue", "yellow", "red", "green"]

setInterval(() => {
  theme.value = colors[Math.floor(Math.random() * 4)]
}, 1000)

</script>

<template>
  <p>hello</p>
</template>

<style scoped>
p {
  color: v-bind(theme)
}
</style>