hldy_app/pages/somethingmove/index.vue

<template>
	<view :class="darkFans?`darkbackgroundContainer`:`backgroundContainer`" @click="goback">
		1111111
	</view>
</template>

<script setup lang="ts">
	import { ref, onMounted, onBeforeUnmount, computed, nextTick } from 'vue';
	import { onLoad } from '@dcloudio/uni-app';
	// 暗黑模式
	const darkFans = ref(false);
	
	type darkFanstype = {
		darkFans:boolean
	}
	
	// 生命周期钩子
	onLoad((options:darkFanstype) => {
		// 为啥这么写，因为options给我返回的是字符串这个`false`,只能这么写，前端中`false`是true
		if(options.darkFans === `false`){
			darkFans.value = false
		}else{
			darkFans.value = true
		}
	});

	const goback = () =>{
		uni.navigateBack()
	}

</script>

<style scoped lang="less">
	.backgroundContainer {
		display: flex;
		position: relative;
		width: 100%;
		height: 100vh;
		background-image: url('/static/index/lightbgcnew.png');
		background-size: cover;
		background-position: center center;
		overflow: hidden;
	}
	
	//暗黑模式
	.darkbackgroundContainer {
		display: flex;
		position: relative;
		width: 100%;
		height: 100vh;
		background-image: url('/static/index/background.png');
		background-size: cover;
		background-position: center center;
		overflow: hidden;
	}
</style>