//先定义EnumActionFlag,可以在类内,也可以在类外 //[Flags] public enum EnumActionFlag ...{ Browse = 0, Add = 1, Modify = 2, Delete = 3, Deleted = 4 } //EnumActionFlag的用法: EnumActionFlag enumAdd=EnumActionFlag.Add ; if (value == (int)enumAdd) ...{ return; }