/// <summary>
        /// 新增命令
        /// </summary>
        /// <returns></returns>
        public override void ExecuteAdd()
        {
            Sys_Systems system = new Sys_Systems();

            system.ID = SystemList.Max(p => p.ID) + 1;
            FrmSystemSettingEdit edit = new FrmSystemSettingEdit(system);

            edit.SaveEvent += (sys) =>
            {
                SystemList.Add(sys);
            };
            edit.ShowDialog();
        }