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<!--
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省市县三级联动选择 (拉卡拉)
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@author xiaoyu
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@site https://www.jeequan.com
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@date 2022/01/17 19:34
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-->
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<template>
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<a-cascader :value="props.value" :options="allList" placeholder="选择省市县" @change="changeFunc" :getPopupContainer="(triggerNode) => (triggerNode.parentElement)" />
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</template>
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<script lang="ts" setup>
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import { defineProps } from 'vue'
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import allList from './bankAreacodeLkl.json'
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const props = defineProps({
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value: { type: Array, default: null },
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})
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// emit 父组件使用: v-model="val" 进行双向绑定。
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const emit = defineEmits(['update:value', 'change'])
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// 当属性发生了变化, 需要通过函数向父组件通信 --》 父组件再通知子组件进行数据的变化。
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function changeFunc(value, selectedOptions){
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emit('change', selectedOptions)
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emit('update:value', value)
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}
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</script>
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