实现效果:

环境:vue3 + arco disign vue + a_input_number

实现代码: NumRange.vue

<template>
<span>
	<a-input-number
	v-model="minValue"
	style="width: 45%"
	v-bind="options"
	@input="minInput"/>
	<span
	:style="{
	display: 'inline-block',
	width: '24px',
	textAlign: 'center',
	}"
	>-</span
	<a-input-number
	v-model="maxValue"
	style="width: 45%"
	v-bind="options'
	@input="maxInput"/>
</span>
<script lang="ts" setup>
	import { reactive, watch, ref } from 'vue';
	const minValue = ref<any>(undefined);
	const maxValue = ref<any>(undefined);
	const props = defineProps({
		modelValue: {
			type: Array,
			default() {
				return [];
			},
		},
		options:{
			type: Object,
			default(){
				return {};
			};
		}
	});
	const emit = defineEmits(['update:modelValue']);
	watch(() => props.modelValue,(newVal, oldVal) => {
			minValue.value = newVal[0] ? newVal[0] : undefined;
			maxValue.value = newVal[1] ? newVal[1] : undefined;
	    },
		{ deep: true, immediate: true }
	);
	const change = () => {
		let result = [];
		if (minvalue.value !== undefined || maxValue.value !== undefined) {
			result = [minValue.value, maxValue.value];
		}
		emit('update:modelValue', result);
	};
	const minInput = (value) => {
		minValue.value = value;
	    change();
	};
	const maxInput = (value) => {
		maxValue.value = value;
		change();
	};
</script>

调用组件

<template>
	<NumRange v-model:modelValue = "rangeValue":option="{min:10, max:20}"></NumRange>
</tamplate>
<script lang="ts" setup>
    import { reactive, watch, ref } from 'vue';
	import NumRange from '@/views/xxx/NumRange.vue'
    const rangeValue = ref([3, 4]);
</script>

NumRange组件只对值进行双向绑定, option:参数可参考官网a-input-number的属性,
可再此基础上对外扩展事件,方法,参数.
父组件赋值默认值为空数组, 或带值的数组