本文整理匯總了C#中System.Enum.HasFlag方法的典型用法代碼示例。如果您正苦於以下問題：C# Enum.HasFlag方法的具體用法？C# Enum.HasFlag怎麽用？C# Enum.HasFlag使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Enum的用法示例。
在下文中一共展示了Enum.HasFlag方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Main
//引入命名空間
using System;
[Flags] public enum DinnerItems {
None = 0,
Entree = 1,
Appetizer = 2,
Side = 4,
Dessert = 8,
Beverage = 16,
BarBeverage = 32
}
public class Example
{
public static void Main()
{
DinnerItems myOrder = DinnerItems.Appetizer | DinnerItems.Entree |
DinnerItems.Beverage | DinnerItems.Dessert;
DinnerItems flagValue = DinnerItems.Entree | DinnerItems.Beverage;
Console.WriteLine("{0} includes {1}: {2}",
myOrder, flagValue, myOrder.HasFlag(flagValue));
}
}輸出：
Entree, Appetizer, Dessert, Beverage includes Entree, Beverage: True
示例2: Main
//引入命名空間
using System;
[Flags] public enum Pets {
None = 0,
Dog = 1,
Cat = 2,
Bird = 4,
Rabbit = 8,
Other = 16
}
public class Example
{
public static void Main()
{
Pets[] petsInFamilies = { Pets.None, Pets.Dog | Pets.Cat, Pets.Dog };
int familiesWithoutPets = 0;
int familiesWithDog = 0;
foreach (var petsInFamily in petsInFamilies)
{
// Count families that have no pets.
if (petsInFamily.Equals(Pets.None))
familiesWithoutPets++;
// Of families with pets, count families that have a dog.
else if (petsInFamily.HasFlag(Pets.Dog))
familiesWithDog++;
}
Console.WriteLine("{0} of {1} families in the sample have no pets.",
familiesWithoutPets, petsInFamilies.Length);
Console.WriteLine("{0} of {1} families in the sample have a dog.",
familiesWithDog, petsInFamilies.Length);
}
}輸出：
1 of 3 families in the sample have no pets. 2 of 3 families in the sample have a dog.