安装插件获取中国省份的所有数据

 npm install element-china-area-data -S

借助ElementPlus 级联选择器 Cascader实现

<template>
    <div>
     <el-cascader
          size="large"
          :options="options"
          v-model="selectedOptions"
          @change="handleChange">
        </el-cascader>
        {{  selectedOptions  }}

    </div>
</template>

<script setup lang="ts">
import { ref } from 'vue'
import { regionData ,codeToText } from 'element-china-area-data'
const options = ref(regionData)  //数据
const selectedOptions = ref([]) //选中的数据
//当选中值变化时触发的事件
const handleChange=(value:any) =>{
    console.log(value) //区域码
     if (
        selectedOptions.value[0] != null &&
        selectedOptions.value[1] != null &&
        selectedOptions.value[2] != null
    ) {
        const str =
            codeToText[selectedOptions.value[0]] +
            '/' +
            codeToText[selectedOptions.value[1]] +
            '/' +
            codeToText[selectedOptions.value[2]]
        console.log(str)  //中文
    }
}

</script>

<style lang="scss" scoped>

</style>

实现效果