C# GetDeclaredProperty设置值错误SetValue方法没有重载有一个参数

using System;
using System.Reflection;

public class MyClass
{
    public string MyProperty { get; set; }
}

public class Program
{
    public static void Main()
    {
        MyClass obj = new MyClass();
        
        PropertyInfo propertyInfo = obj.GetType().GetProperty("MyProperty");
        
        if (propertyInfo != null && propertyInfo.CanWrite)
        {
            propertyInfo.SetValue(obj, "Hello World");
        }
        
        Console.WriteLine(obj.MyProperty); // 输出：Hello World
    }
}