优化产品接口

application/api/controller/Product.php

@@ -678,6 +678,7 @@ class Product extends Api
                 LEFT JOIN `物料_存货结构` d ON LEFT(a.物料代码,$num+2) = d.编号
                ";
         }
+        
         $data = Db::query($sql);
         $mergedArray = [];
         foreach ($data as $item) {