feature: SMS getCountLeft接口

src/SMS/Lib/SMSInterface.php

@@ -22,6 +22,7 @@ use Swoft\Core\ResultInterface;
  * @method ResultInterface deferPayOrder(int $storeId,string $orderSn,int $payStatus) 
  * @method ResultInterface deferGetOrder(int $storeId,int $smsOId)
  * @method ResultInterface deferGetOrderBySn(int $storeId,string $sn)
+ * @method ResultInterface deferGetCountLeft(int $storeId)
  */
 interface SMSInterface
 { 
@@ -63,5 +64,14 @@ interface SMSInterface
      * @return array
      */
     public function getOrderBySn(int $storeId,string $sn);
+
+
+     /**
+     * 根据店铺id 获取剩余的短信条数
+     *
+     * @param integer $storeId
+     * @return int
+     */
+    public function getCountLeft(int $storeId);
     
 }