refactor:修改获取商品详情方法

backend/modules/goods/logic/goods/GoodsManager.php

@@ -296,7 +296,7 @@ class GoodsManager
         $data['id'] = $sku->id;
         $data['price'] = $sku->price;
         $data['stock'] = $sku->stock;
-        $data['weight'] = $sku->weight/1000;
+        $data['weight'] = $sku->weight/ShopManager::proportionalConversion(ShopManager::UNIT_TYPE_WEIGHT);
         return $data;
     }