如何使用.NET反射检查可空引用类型

using System;
using System.Reflection;

public class MyClass
{
    public string Name { get; set; }
    public int? Age { get; set; }
    public DateTime? Birthday { get; set; }
}

public class Program
{
    public static void Main()
    {
        Type type = typeof(MyClass);
        PropertyInfo[] properties = type.GetProperties();

        foreach (PropertyInfo property in properties)
        {
            Type propertyType = property.PropertyType;
            Type underlyingType = Nullable.GetUnderlyingType(propertyType);

            if (underlyingType != null)
            {
                Console.WriteLine("Property: " + property.Name);
                Console.WriteLine("Underlying Type: " + underlyingType.FullName);
                Console.WriteLine("Nullable: Yes");
                Console.WriteLine();
            }
        }
    }
}