C#多枚举值的写法与读法

首先，定义枚举的时候必须是2,4,8,16这种2的次方的值。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    public enum TestEnum { None = , Value1 = , Value2 = , Value3 = , Value4 = , Value5 = };

    class Program
    {
        static void Main(string[] args)
        {
            TestEnum test;
            //Detection
            test = TestEnum.Value3 | TestEnum.Value4;
            Console.WriteLine((test & TestEnum.Value2) == TestEnum.Value2);

            //Remove
            test = TestEnum.Value3 | TestEnum.Value4;
            test &= ~TestEnum.Value3;
            Console.WriteLine((test & TestEnum.Value3) == TestEnum.Value3);
            Console.ReadLine();

            //Print:
            //false
            //false
        }
    }
}