使用Linq将对象列表获取到不同的分组列表

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

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

public class Program
{
    public static void Main()
    {
        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 = "Dave", Age = 30 }
        };

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

        foreach (var group in groupedPeople)
        {
            Console.WriteLine("Age: " + group.Key);
            foreach (var person in group)
            {
                Console.WriteLine("Name: " + person.Name);
            }
            Console.WriteLine();
        }
    }
}