调整商品数据格式

app/Http/Controllers/OrderController.php

@@ -252,7 +252,7 @@ function getSelfStock($goods_id)
     $response = json_decode(curlApi($url, $data, 'POST'), true); 
 
     if ($response['errcode'] == 0) {
-        return $response['data']['stock'];
+        return isset($response['data'][$goods_id]['stock']) ? $response['data'][$goods_id]['stock'] : 0;
     } else {
         return '未找SKU信息';
     }