下面的手段是使用给枚举项打标签的方式,来返回字符串

下面分别定义一个属性类,和一个枚举帮助类

    [AttributeUsage(AttributeTargets.Field,AllowMultiple = false)]
    public sealed class EnumDescriptionAttribute : Attribute
    {
        private string description;
        public string Description { get { return description; } }

        public EnumDescriptionAttribute(string description)
            : base()
        {
            this.description = description;
        }
    }

    public static class EnumHelper
    {
        public static string GetDescription(Enum value)
        {
            if (value == null)
            {
                throw new ArgumentException("value");
            }
            string description = value.ToString();
            var fieldInfo = value.GetType().GetField(description);
            var attributes =
                (EnumDescriptionAttribute[]) fieldInfo.GetCustomAttributes(typeof (EnumDescriptionAttribute), false);
            if (attributes != null && attributes.Length > 0)
            {
                description = attributes[0].Description;
            }
            return description;
        }
    }

enum Week
{
    [EnumDescription("星期一")]
    Monday,
    [EnumDescription("星期二")]
    Tuesday
}

//下面打印结果为: 星期一
Console.WriteLine(EnuHelper.GetDescription(Week.Monday))