如何将LINQ与dynamic结合使用？泛型？

using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
    public static void Main()
    {
        // 创建一个动态对象的列表
        var dynamicList = new List<dynamic>
        {
            new { Name = "Alice", Age = 30 },
            new { Name = "Bob", Age = 25 },
            new { Name = "Charlie", Age = 35 }
        };

        // 使用LINQ查询动态列表
        var olderThan30 = dynamicList.Where(d => d.Age > 30);

        // 输出结果
        foreach (var person in olderThan30)
        {
            Console.WriteLine($"{person.Name} is {person.Age} years old.");
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;

public static class DynamicLinqHelper
{
    public static IEnumerable<dynamic> FilterByProperty<T>(IEnumerable<T> source, string propertyName, object value)
    {
        return source.Where(item => {
            dynamic d = item;
            return d.GetType().GetProperty(propertyName).GetValue(d, null).Equals(value);
        }).Cast<dynamic>();
    }
}

public class Program
{
    public static void Main()
    {
        var mixedList = new List<object>
        {
            new { Name = "Alice", Age = 30 },
            new { Name = "Bob", Age = 25 },
            new { Name = "Charlie", Age = 35 }
        };

        var filteredList = DynamicLinqHelper.FilterByProperty(mixedList, "Age", 30);

        foreach (var item in filteredList)
        {
            Console.WriteLine($"{item.Name} is {item.Age} years old.");
        }
    }
}