fix(region-select): 修复区域选择如果被选完页面报错的问题

components/region-select/index.vue

@@ -19,13 +19,19 @@
             </div>
           </picker-view-column>
           <picker-view-column
-            v-if="cityList.length && ['city', 'county'].includes(this.area)"
+            v-if="
+              cityList &&
+              cityList.length &&
+              ['city', 'county'].includes(this.area)
+            "
           >
             <div v-for="c in cityList" :key="c.id" class="picker-item">
               {{ c.name }}
             </div>
           </picker-view-column>
-          <picker-view-column v-if="countyList.length && this.area == 'county'">
+          <picker-view-column
+            v-if="countyList && countyList.length && this.area == 'county'"
+          >
             <div v-for="d in countyList" :key="d.id" class="picker-item">
               {{ d.name }}
             </div>
@@ -119,6 +125,7 @@ export default {
               .filter(key => res.data[key])
               .filter(key => !res.data?.data?.[`${key}Data`])
               .reverse()
+            console.log(needSelected, 'needSelected')
             if (
               needSelected?.length &&
               Object.keys(res.data?.data || {}).length < needSelected?.length
@@ -180,6 +187,7 @@ export default {
           }
         }
       })
+
       this.cityList.forEach(item => {
         const province = this.provinceList.find(
           province => province.pkId === item.parent
@@ -192,6 +200,8 @@ export default {
           }
         }
       })
+      this.provinceList = this.provinceList.filter(item => item.children)
+      this.cityList = this.cityList.filter(item => item.children)
       this.cityList = this.provinceList[this.pickerValue[0]].children
       this.countyList = this.cityList[this.pickerValue[1]].children
     },