diff --git a/src/BarCode.Web.Domain/Entitys/Box.cs b/src/BarCode.Web.Domain/Entitys/Box.cs
index 12fa763..80da7c2 100644
--- a/src/BarCode.Web.Domain/Entitys/Box.cs
+++ b/src/BarCode.Web.Domain/Entitys/Box.cs
@@ -124,30 +124,41 @@ namespace BarCode.Web.Domain.Entitys
         /// /// <param name="isNotCount">是否不计数</param>
         public Result UnSerialNumber(string serialNumber, string materialNumber,string isNotCount)
         {
+
+            
             var detail = this.Details.FirstOrDefault(f => f.MaterialNumber.Equals(materialNumber));
-            if (detail == null)
-                return Result.ReFailure(ResultCodes.BoxMaterialNoDataError);
-            var serial = detail.SerialNumbers.FirstOrDefault(f => f.Equals(serialNumber));
-            if (serial == null && isNotCount!="1")
-                return Result.ReFailure(ResultCodes.BoxSerialNumberNoDataError);
+
+            if (isNotCount != "1")
+            {
+                if (detail == null)
+                    return Result.ReFailure(ResultCodes.BoxMaterialNoDataError);
+                var serial = detail.SerialNumbers.FirstOrDefault(f => f.Equals(serialNumber));
+                if (serial == null)
+                    return Result.ReFailure(ResultCodes.BoxSerialNumberNoDataError);
+            }
+            if(detail!=null)
+            { 
             detail.SerialNumbers.Remove(serialNumber);
+             if (isNotCount == "1")
+                {
+
+                }
+                else
+                {
+                    detail.Qty = detail.Qty - 1;
+                }
+                //如果数量为0了就删除这条明细
+                if (detail.Qty <= 0)
+                    this.Details.Remove(detail);
+                //如果没有明细了 就把状态改成未使用
+                if (detail.Qty <= 0)
+                    this.Status = BoxStatus.NoUse;
+
+            }
 
 
             // detail.Qty = detail.SerialNumbers.Count();
-            if(isNotCount=="1")
-            {
-
-            }
-            else
-            { 
-                detail.Qty = detail.Qty - 1;
-            }
-            //如果数量为0了就删除这条明细
-            if (detail.Qty <= 0)
-                this.Details.Remove(detail);
-            //如果没有明细了 就把状态改成未使用
-            if (detail.Qty <= 0)
-                this.Status = BoxStatus.NoUse;
+   
 
             ////如果数量为0了就删除这条明细
             //if (detail.SerialNumbers.Count() <= 0)