// 枚举
public enum enumStudent
{
    [Description("性别")]
    sex = 0,
    [Description("年龄")]
    age = 1,
}
 
// 获取方法
public string GetDescriptionByEnum(Enum enumValue)
{
    string value = enumValue.ToString();
    System.Reflection.FieldInfo field = enumValue.GetType().GetField(value);
    object[] objs = field.GetCustomAttributes(typeof(DescriptionAttribute), false);    //获取描述属性
    if (objs.Length == 0)    //当描述属性没有时，直接返回名称
        return value;
    DescriptionAttribute descriptionAttribute = (DescriptionAttribute)objs[0];
    return descriptionAttribute.Description;
}
 
 
// 调用示例
GetDescriptionByEnum(enumStudent.age) → 年龄
 
 
public T GetEnumByDescription<T>(string description) where T : Enum
{
    System.Reflection.FieldInfo[] fields = typeof(T).GetFields();
    foreach(System.Reflection.FieldInfo field in fields)
    {
        object[] objs = field.GetCustomAttributes(typeof(DescriptionAttribute), false);    //获取描述属性
        if (objs.Length > 0 && (objs[0] as DescriptionAttribute).Description == description)
        {
            return (T)field.GetValue(null);
        }
    }
 
    throw new ArgumentException(string.Format("{0} 未能找到对应的枚举.", description), "Description");
}
 
// 调用示例