C# 枚舉

public enum Color{    Red = 0,    Yellow = 1,    Green = 2}        static void StopOrGo(Color color){    switch (color)    {        case Color.Red:            Console.WriteLine("Stop!");            break;        case Color.Yellow:            Console.WriteLine("Hurry!");            break;        case Color.Green:            Console.WriteLine("Go!");            break;        default:            Console.WriteLine("Unknown color!");            break;    }}static void Main(string[] args){    StopOrGo(Color.Red);    Color color1 = Color.Yellow;    // from an enum to string    // output Yellow    Console.WriteLine(color1.ToString());    // from a string to enum    // output Green    Color color2 = (Color)Enum.Parse(typeof(Color), "green", true);    Console.WriteLine(color2);    // from an enum to int    // output 0    Color color3 = Color.Red;    Console.WriteLine((int)color3);    // from an int to enum                // output Yellow    Console.WriteLine((Color)1);    Console.ReadKey();}

public static object Parse(Type enumType, string value, bool ignoreCase) 第三個參數是忽略大小寫。