如何遍历显示一个枚举的内容

最新推荐文章于 2022-09-28 17:37:40 发布

原创最新推荐文章于 2022-09-28 17:37:40 发布 · 1.8k 阅读

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#colors #enums #string #system #class

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此博客展示了C#中枚举类型的使用。定义了表示星期、沸点和颜色的枚举，通过循环输出枚举项及其对应值，还演示了使用FlagsAttribute组合枚举值。体现了枚举在C#编程中表示一组常量的应用。

using System;

public class EnumTest {
    enum Days { Saturday, Sunday, Monday, Tuesday, Wednesday, Thursday, Friday };
    enum BoilingPoints { Celcius = 100, Fahrenheit = 212 };
    [FlagsAttribute]
    enum Colors { Red = 1, Green = 2, Blue = 4, Yellow = 8 };

public static void Main() {

Type weekdays = typeof(Days);
Type boiling = typeof(BoilingPoints);

Console.WriteLine("The days of the week, and their corresponding values in the Days Enum are:");

foreach ( string s in Enum.GetNames(weekdays) )
Console.WriteLine( "{0,-11}= {1}", s, Enum.Format( weekdays, Enum.Parse(weekdays, s), "d"));

        Console.WriteLine();
        Console.WriteLine("Enums can also be created which have values that represent some meaningful amount.");
        Console.WriteLine("The BoilingPoints Enum defines the following items, and corresponding values:");

foreach ( string s in Enum.GetNames(boiling) )
Console.WriteLine( "{0,-11}= {1}", s, Enum.Format(boiling, Enum.Parse(boiling, s), "d"));

        Colors myColors = Colors.Red | Colors.Blue | Colors.Yellow;
        Console.WriteLine();
        Console.WriteLine("myColors holds a combination of colors. Namely: {0}", myColors);
    }
}