具有反射的C#获取属性值没有默认值

using System;
using System.Reflection;

public class ExampleClass
{
    public string ExampleProperty { get; set; }
}

public class Program
{
    public static void Main()
    {
        ExampleClass instance = new ExampleClass();
        PropertyInfo propertyInfo = typeof(ExampleClass).GetProperty("ExampleProperty");

        if (propertyInfo != null)
        {
            string propertyValue = (string)propertyInfo.GetValue(instance);
            if (string.IsNullOrEmpty(propertyValue))
            {
                propertyValue = "Default Value"; // 设置默认值
            }
            Console.WriteLine(propertyValue);
        }
        else
        {
            Console.WriteLine("Property not found.");
        }
    }
}