小豆干就是我唷

透過 Type 類別的 IsValueType() 方法，判斷是否為實值類別。

Byte var_byte = 0;
Int32 var_int = 0;
DateTime var_datetime = System.DateTime.Now;
Guid var_guid = new Guid();
 
string var_str = "";
Exception var_ex = new Exception();
 
object[] types = 
{ var_byte, var_int, var_guid, var_datetime, var_str, var_ex };
 
foreach (object o in types)
{
    string type;
    if (o.GetType().IsValueType)
        type = "Value type";
    else
        type = "Reference Type";
    Console.WriteLine("{0}: {1}", o.GetType(), type);
}
//System.Byte:      Value type
//System.Int32:     Value type
//System.DateTime:  Value type
//System.Guid:      Value type
//System.String:    Reference Type
//System.Exception: Reference Type