<template>
	<view class="content">
		<view :class="{'box':sIn == index ? true : false}" v-for="(item,index) in arr" :key="index" @click="ch(index)">
			数组的第{{index+1}}个:{{item}}
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				title: 'Hello',
				b : true,
				H : '<div>我是div</div>',
				arr:["篮球","羽毛球","乒乓球","排球"],
				bOn: false,
				sIn : ""
			}
		},
		onLoad() {

		},
		methods: {
			ch (i){
				
				this.sIn = i;
			}
		}
	}
</script>

<style>
	.content {
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
	}

	.logo {
		height: 200rpx;
		width: 200rpx;
		margin-top: 200rpx;
		margin-left: auto;
		margin-right: auto;
		margin-bottom: 50rpx;
	}

	.text-area {
		display: flex;
		justify-content: center;
	}

	.title {
		font-size: 36rpx;
		color: #8f8f94;
	}
	.box{
		width: 200px;
		height: 20px;
		background-color: #007AFF;
	}
</style>

效果如下