Flags 屬性

使用 <Flags> 屬性，列舉成為一組標誌。此屬性允許為列舉變數分配多個值。標誌列舉的成員應初始化為 2（1,2,4,8 ……）的冪。

Module Module1

    <Flags>
    Enum Material
        Wood = 1
        Plastic = 2
        Metal = 4
        Stone = 8
    End Enum

    Sub Main()
        Dim houseMaterials As Material = Material.Wood Or Material.Stone
        Dim carMaterials as Material = Material.Plastic Or Material.Metal
        Dim knifeMaterials as Material = Material.Metal

        Console.WriteLine(houseMaterials.ToString()) 'Prints "Wood, Stone"
        Console.WriteLine(CType(carMaterials, Integer)) 'Prints 6
    End Sub

End Module