🐞 fix: 修复地址数据保存时的情况不一样，取数据时可能出现问题的处理

 <!--
  * @Date: 2022-08-30 14:32:11
  * @LastEditors: hookehuyr hookehuyr@gmail.com
- * @LastEditTime: 2024-11-21 13:14:21
+ * @LastEditTime: 2024-11-21 13:34:36
  * @FilePath: /data-table/src/components/AreaPickerField/index.vue
  * @Description: 省市区选择控件
 -->
@@ -84,6 +84,15 @@ const validatorMessage = (val, rule) => {
 };
 const rules = [{ validator, message: validatorMessage }];
 
+const isJSON = (value) => {
+  try {
+    JSON.parse(value);
+    return true;
+  } catch (e) {
+    return false;
+  }
+}
+
 // 子组件通信，适配规则触发
 const onActive = (val) => {
   // 适配cookie保存未完成表单
@@ -94,11 +103,22 @@ const onActive = (val) => {
     // 如果Cookie存在，更新它
     let obj = JSON.parse(existingCookie);
     if (val.city_code) { // 修改了
-      let temp = JSON.parse(obj[props.item.key]);
+      let temp = null;
+      if (isJSON(obj[props.item.key])) {
+        temp = JSON.parse(obj[props.item.key]);
         temp.city_code = val.city_code;
         temp.province = val.province;
         temp.city = val.city;
         temp.district = val.district;
+      } else {
+        temp = {
+          city_code: val.city_code,
+          province: val.province,
+          city: val.city,
+          district: val.district,
+          street: val.street,
+        };
+      }
       obj[props.item.key] = JSON.stringify(temp); // 替换掉旧值
     } else { // 只修改了地址
       let temp = JSON.parse(obj[props.item.key]);