VUE+elementUI Select 前端实现 三级省市区联动

VUE+elementUI前端实现 三级省市区联动select

HTML代码

<b-col md="6">
	<label >省</label>
	<el-select v-model="provinceValue" placeholder="请选择省" @change="chooseProvince">
		<el-option	
    		v-for="item in provinceData"
    		:key="item.code"
    		:label="item.name"
    		:value="item.name">
		</el-option>
	</el-select>
</b-col>
<b-col md="6">
	<label >市</label>
	<el-select v-model="cityValue" placeholder="请选择市" @change="chooseCity">
		<el-option	
    		v-for="item in cityData"
    		:key="item.code"
    		:label="item.name"
    		:value="item.name">
		</el-option>
	</el-select>
</b-col>
<b-col md="6">
	<label >区、县</label>
	<el-select v-model="areaValue" @change="chooseArea" placeholder="请选择区、县">
    	<el-option
	        v-for="item in areaData"
	        :key="item.code"
	        :label="item.name"
	        :value="item.name">
	    </el-option>
    </el-select>
</b-col>

JS代码

	import axios from 'axios';
	export default{