如何在.NET 4.0中检查泛型参数是否是动态的

using System;

public class Program
{
    public static void Main()
    {
        Type intType = typeof(int);
        Type listType = typeof(List<>);

        Console.WriteLine("intType is generic type: " + intType.IsGenericType);
        Console.WriteLine("listType is generic type: " + listType.IsGenericType);

        Console.WriteLine("intType is generic type definition: " + intType.IsGenericTypeDefinition);
        Console.WriteLine("listType is generic type definition: " + listType.IsGenericTypeDefinition);
    }
}

intType is generic type: False
listType is generic type: True
intType is generic type definition: False
listType is generic type definition: True

using System;

public class Program
{
    public static void Main()
    {
        Type dynamicType = typeof(dynamic);
        Type listType = typeof(List<>);

        Console.WriteLine("dynamicType is dynamic: " + dynamicType.IsDynamic);
        Console.WriteLine("listType is dynamic: " + listType.IsDynamic);
    }
}

dynamicType is dynamic: True
listType is dynamic: False