统计代码变更为skn

@@ -71,7 +71,7 @@ class PaymentModel
                     'price' => $val['goods_price'],
                     'number' => $val['buy_number']
                 );
-                $pinyouGoodsArr[] = $val['product_id'] . ',' . $val['buy_number'];
+                $pinyouGoodsArr[] = $val['product_skn'] . ',' . $val['buy_number'];
             }
             $result['goodsData'] = $goodsData;
             // skn列表