枚舉類型（也稱為枚舉）是非常有意思的的一種值類型，它不僅可以提高程序的可讀性，而且可以減少因業務改變而導致的程序改動。
另外枚舉類型是強類型，接受方法必須有一個相同的匹配參數，否則將會出錯。
好，廢話少說，至於枚舉類型(emun)的特性，幾乎會編程的人都懂的，偶沒功力在這裡長篇大論。
下面是一個例子，偶還是按官方的寫法，以星期為例子：
代碼
class Program
{
static void Main(string[] args)
{
Console.Write(GetDays(Days.Saturday));
Console.Read();
}
static string GetDays(Days _days)
{
string d = string.Empty;
switch (_days)
{
case Days.Monday: d = "Today is Monday."; break;
case Days.Tuesday: d = "Today is Tuesday."; break;
case Days.Wednesday: d = "Today is Wednesday."; break;
case Days.Thursday: d = "Today is Thursday."; break;
case Days.Friday: d = "Today is Friday."; break; ;
case Days.Saturday: d = "Today is Saturday."; break;
case Days.Sunday: d = "Today is Sunday."; break;
}
return d;
}
}
public enum Days
{
/// <summary>
/// this is sunday
/// </summary>
Sunday = 7,
/// <summary>
/// this is monday
/// </summary>
Monday = 1,
/// <summary>
/// this is tuesday
/// </summary>
Tuesday = 2,
/// <summary>
