diff --git a/backend/modules/shop/logic/ShopManager.php b/backend/modules/shop/logic/ShopManager.php
index e7c72fe..8a4a2bb 100644
--- a/backend/modules/shop/logic/ShopManager.php
+++ b/backend/modules/shop/logic/ShopManager.php
@@ -36,8 +36,8 @@ class ShopManager
     }
 
     /**
-     * @param $expressAreaModel
-     * @param $expressTemplateModel
+     * @param ExpressArea|$expressAreaModel
+     * @param ExpressTemplate|$expressTemplateModel
      * 区域运费模板按比例转化数据
      */
     public static function expressAreaScaleDate($expressAreaModel, $expressTemplateModel)
@@ -54,22 +54,33 @@ class ShopManager
     }
 
     /**
-     * @param $expressAresModel
+     * @param ExpressArea|$expressAreaModel
      * @return array
      * 除去已被选取的城市，筛选剩下的城市数据
      */
-    public static function filterCity($expressAresModel)
+    public static function filterCity($expressAreaModel)
     {
-        $data = [];
         $query = ExpressArea::find()
             ->select(['city'])
-            ->where(['express_template' => $expressAresModel->express_template]);
-        if ($expressAresModel->id) {    //修改操作时，除去自身的城市
-            $query = $query->andWhere(['!=', 'id', $expressAresModel->id]);
+            ->where(['express_template' => $expressAreaModel->express_template]);
+        if ($expressAreaModel->id) {    //修改操作时，除去自身的城市
+            $query = $query->andWhere(['!=', 'id', $expressAreaModel->id]);
         }
-        $expressAreas = $query->all();
+        $allDate = $query->all();
+
+        $expressAresCityIdArr = self::filterSelectedCtiyIdArr($allDate);
+
+        $leftoverCityArr = self::filterLeftoverCityArr($expressAresCityIdArr);
+        return $leftoverCityArr;
+    }
 
-        //获取已选的城市id数组
+    /**
+     * @param $expressAreas
+     * @return array 已选的城市id数组
+     * 获取已选的城市id数组
+     */
+    private static function filterSelectedCtiyIdArr($expressAreas)
+    {
         $expressAresCityIdArr = [];
         if ($expressAreas) {
             foreach ($expressAreas as $expressAreaCity) {
@@ -77,23 +88,31 @@ class ShopManager
                 $expressAresCityIdArr = array_unique(array_merge($cityIdArr, $expressAresCityIdArr));
             }
         }
+        return $expressAresCityIdArr;
+    }
 
-        //筛选剩下的城市
+    /**
+     * @param $expressAresCityIdArr
+     * @return array 未选的城市id数组
+     * 筛选剩下的城市
+     */
+    private static function filterLeftoverCityArr($expressAresCityIdArr)
+    {
+        $data = [];
         $provinces = Province::find()->cache(0)->all();
-        $j = 0;
-        foreach ($provinces as $k => $v) {
+        foreach ($provinces as $key => $province) {
             $cities = City::find()
-                ->where(['province_id' => $v->province_id])
+                ->where(['province_id' => $province->province_id])
                 ->andWhere(['not in', 'city_id', $expressAresCityIdArr])
                 ->all();
+
             if ($cities) {
-                $data[$j]['province'] = $v->name;
+                $data[$key]['province'] = $province->name;
                 foreach ($cities as $city) {
-                    $data[$j]['city'][] = ['id' => $city->city_id, 'name' => $city->name];
+                    $data[$key]['city'][] = ['id' => $city->city_id, 'name' => $city->name];
                 }
-                $j++;
             }
         }
-        return $data;
+        return array_values($data);
     }
 }
\ No newline at end of file