public async Task <Menu> AddOrModifyMenuAsync(AddOrModifyMenu model, string sOperator)
        {
            Menu entityMenu;

            if (model.Id == 0)
            {
                entityMenu = _mapper.Map <Menu>(model);
                _menuRepository.Append(entityMenu, sOperator);
            }
            else
            {
                entityMenu = _menuRepository.Select(model.Id);
                if (entityMenu != null)
                {
                    _mapper.Map(model, entityMenu);
                    _menuRepository.Update(entityMenu, sOperator);
                }
            }
            //添加菜单角色
            await _roleMenuService.AddOrDeleteMenuRoleAsync(entityMenu.Id, model.lstRoleId, sOperator);

            return(entityMenu);
        }