diff --git a/dao/base/implments/Operation.dao.impl.go b/dao/base/implments/Operation.dao.impl.go
index a1dd88e..604431e 100644
--- a/dao/base/implments/Operation.dao.impl.go
+++ b/dao/base/implments/Operation.dao.impl.go
@@ -317,7 +317,6 @@ func (impl *OperationDAOImplement) GetOperationRelData(artIdLi []string, workLin
 	for index, artId := range artIdLi {
 		if index != 0 {
 			artIdStr += ", "
-			artIdStr += artId
 		}
 		artIdStr += artId
 	}