diff --git a/src/WmsStrategy.php b/src/WmsStrategy.php
index 76e6208..184f60d 100644
--- a/src/WmsStrategy.php
+++ b/src/WmsStrategy.php
@@ -106,19 +106,6 @@ class WmsStrategy
         return $skuTotalWeight;
     }
 
-    /**
-     * 根据商品重量区分bc单，返回可选择的物流快递
-     * @param string $province
-     * @param string $weight
-     * @return array
-     */
-    public function getLogistics($province, $weight)
-    {
-        $expressChooseConf = require(dirname(dirname(__FILE__)) . '/config/express_choose.php');
-        $type = self::getOrderType($province, $weight, $expressChooseConf);
-        return $expressChooseConf['logistics'][$type];
-    }
-
     /**
      * 选择物流公司
      * @param string $province
@@ -136,6 +123,19 @@ class WmsStrategy
         ];
     }
 
+    /**
+     * 根据商品重量区分bc单，返回可选择的物流快递
+     * @param string $province
+     * @param string $weight
+     * @return array
+     */
+    static public function getLogistics($province, $weight)
+    {
+        $expressChooseConf = require(dirname(dirname(__FILE__)) . '/config/express_choose.php');
+        $type = self::getOrderType($province, $weight, $expressChooseConf);
+        return $expressChooseConf['logistics'][$type];
+    }
+
     /**
      * 判断订单BC类型
      * @param $province