public MResultModel AddClassInfo(EditClassModel inputM) { MResultModel resM; try { _classListBLL.AddClassInfo(inputM); resM = MResultModel.GetSuccessResultM("添加成功"); } catch (ArgumentNullException ex) { resM = MResultModel.GetFailResultM(ex.Message); } catch (ArgumentException ex) { resM = MResultModel.GetFailResultM(ex.Message); } return(resM); }