在LINQ中是否有任何优雅的方法可以将集合基于属性存储到一组列表中

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

class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

class Program
{
    static void Main(string[] args)
    {
        List<Person> people = new List<Person>
        {
            new Person { Name = "Alice", Age = 25 },
            new Person { Name = "Bob", Age = 30 },
            new Person { Name = "Charlie", Age = 25 },
            new Person { Name = "David", Age = 30 },
            new Person { Name = "Eve", Age = 20 }
        };

        var groupedPeople = people.GroupBy(p => p.Age);

        foreach (var group in groupedPeople)
        {
            Console.WriteLine($"Age: {group.Key}");
            Console.WriteLine(string.Join(", ", group.Select(p => p.Name)));
        }
    }
}

Age: 20
Eve
Age: 25
Alice, Charlie
Age: 30
Bob, David