用"|" 表示多种状态的按位枚举

实现效果如FlagsAttribute 那样,  可以有多重属性, 赋值方法如 "FlagsAttribute.Hidden |  FlagsAttribute.ReadOnly " 首先定一个enum类型 例: 1 enum  Test  2 {3    T1 = 1,4    T2 = 2,5    T3 = 4,6    T4 = 8,7    T5 = 168} 每一个元素的值一定要是2 的幂 如 2, 4 ,8, 16 等 应用: [STAThread]         static   void  Main( string [] args)         {            Test t  = Test.T1 | Test.T3;            if  ( (t & Test.T1) > 0 )            {                Console.WriteLine("is T1");            }            else            {                Console.WriteLine("isn't T1");            }                if ((t & Test.T2) > 0 )            {                Console.WriteLine("is T2");            }            else            {                Console.WriteLine("isn't T2");            }                    Console.ReadLine();                    } 输出结果 : is T1 isn't T2

转载于:https://www.cnblogs.com/skyfei/archive/2006/09/18/507754.html