下单改进,&符的bug

addons/unishop/model/Order.php

@@ -241,7 +241,7 @@ class Order extends Model
         // 运费
 //        $deliveryPrice = Delivery::algorithm($delivery, array_sum($numbers));
         $deliveryPrice = '0';
-        foreach ($products as &$product) {
+        foreach ($products as $product) {
             $deliveryPrice = bcadd($deliveryPrice,$product['yunfei_price'],2);
         }