Index: ssts-diposablegoods/src/main/java/com/forgon/disinfectsystem/diposablegoods/service/DiposableGoodsManagerImpl.java
===================================================================
diff -u -r21858 -r21878
--- ssts-diposablegoods/src/main/java/com/forgon/disinfectsystem/diposablegoods/service/DiposableGoodsManagerImpl.java	(.../DiposableGoodsManagerImpl.java)	(revision 21858)
+++ ssts-diposablegoods/src/main/java/com/forgon/disinfectsystem/diposablegoods/service/DiposableGoodsManagerImpl.java	(.../DiposableGoodsManagerImpl.java)	(revision 21878)
@@ -1083,11 +1083,11 @@
 		if (dbConnection.isSqlServer()) {
 			sql = "select * from (select top 1 d.cost from DisposableGoodsBatchStock d where d.disposableGoodsId = "
 					+ disposableGoods.getId()
-					+ " and storage > 0 order by d.id asc) as temp";
+					+ " and storage > 0 order by d.id desc) as temp";
 		} else if (dbConnection.isOracle()) {
 			sql = "select * from (select d.cost from DisposableGoodsBatchStock d where d.disposableGoodsId = "
 					+ disposableGoods.getId()
-					+ " and storage > 0 order by d.id asc) where rownum =1";
+					+ " and storage > 0 order by d.id desc) where rownum =1";
 		}
 		ResultSet rs = objectDao.executeSql(sql);
 		Double returnValue = null;
Index: ssts-diposablegoods/src/main/java/com/forgon/disinfectsystem/diposablegoods/service/DiposableGoodsManager.java
===================================================================
diff -u -r21848 -r21878
--- ssts-diposablegoods/src/main/java/com/forgon/disinfectsystem/diposablegoods/service/DiposableGoodsManager.java	(.../DiposableGoodsManager.java)	(revision 21848)
+++ ssts-diposablegoods/src/main/java/com/forgon/disinfectsystem/diposablegoods/service/DiposableGoodsManager.java	(.../DiposableGoodsManager.java)	(revision 21878)
@@ -252,7 +252,7 @@
 	public List<DisposableGoods> getDisposableGoodsByKeyword(String keyword);
 
 	/**
-	 * 获取一次性物品定义的价格（以最后入库的批次为准，如果没有就以一次性物品定义的参考价为准）.
+	 * 获取一次性物品定义的价格（以最后入库并且有库存大于0的那一个批次为准，如果没有就以一次性物品定义的参考价为准）.
 	 * @param disposableGoods 一次性物品
 	 * @return
 	 */