uniProject/components/question/danxuan.vue

<template>
	<view v-if="question">
		<!-- 标题区域 -->
		<view>单选题:</view>
		<!-- 题干区域 -->
		<view v-html="data.name"></view>
		<!-- 选项区域 -->
		<view>
			<view v-for="(item,index) in data.contents" :class="formatClass(index)" :key="index" @click="onSelect(index)">
				<text>{{item.number}}</text>
				<text>{{item.label}}</text>
			</view>
		</view>
	</view>
</template>

<script setup>
	import {
		ref,
		reactive,
		watch
	} from 'vue';
	import {
		useQuestionTools
	} from "./useQuestionTools"
	const {
		getLetterByIndex
	} = useQuestionTools();

	const props = defineProps({
		question: {
			type: Object,
		},
		showError: {
			type: Boolean,
			default: false
		}
	})

	const data = reactive({
		name: '', //题干数据
		contents: [], // 选项数据
	})

	watch(() => props.question, (val) => formatData(val), {
		immediate: true
	})

	function formatClass(index) {
		if (props.showError) {
			return {
				active_right: props.question.result == index,
				showError: props.question.reply == index && props.question.result != index
			}
		} else {
			return {
				active: props.question.reply == index
			}
		}
	}

	function formatData(val) {
		if (val) {
			data.name = val.name;
			data.contents = val.optList.map((item, index) => {
				return {
					label: item,
					number: getLetterByIndex(index)
				}
			})
		}
	}

	function onSelect(index) {
		if (props.showError) {
			return;
		}
		props.question.reply = index;
	}
</script>

<style lang="scss" scoped>
	.active {
		background-color: blue; // 单选题选中的颜色
	}
	.showError {
		background-color: red; // 答案解析：单选错误选中颜色
	}
	.active_right {
		background-color: green; // 答案解析：单选正确颜色
	}
</style>