fix 处理地址选择组件默认值为空时显示问题

 <!--
  * @Date: 2023-03-29 15:27:02
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2024-06-13 17:13:29
+ * @LastEditTime: 2024-06-17 14:47:21
  * @FilePath: /data-table/src/components/AreaPickerField/MyComponent.vue
  * @Description: 文件描述
 -->

 <!--
  * @Date: 2022-08-30 14:32:11
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2024-06-13 17:06:42
+ * @LastEditTime: 2024-06-17 14:46:43
  * @FilePath: /data-table/src/components/AreaPickerField/index.vue
  * @Description: 省市区选择控件
 -->
@@ -21,12 +21,17 @@
 
 <script setup>
 import MyComponent from './MyComponent.vue';
+import _ from 'lodash'
 
 const props = defineProps({
   item: Object,
 });
 
-if (props.item.component_props.default) {
+if (!props.item.component_props.default.city_code) { // 默认值为空
+  props.item.component_props.default.picker_value = '';
+  props.item.component_props.default.input_value = '';
+  props.item.city_code = '';
+} else {
   props.item.component_props.default.picker_value = `${props.item.component_props.default.province} ${props.item.component_props.default.city} ${props.item.component_props.default.district}`;
   props.item.component_props.default.input_value = props.item.component_props.default.street;
   props.item.city_code = props.item.component_props.default.city_code;