LINQ在哪里查询不同派生类的集合

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

public class Animal { }
public class Dog : Animal { }
public class Cat : Animal { }

public class Program
{
    public static void Main()
    {
        List<Animal> animals = new List<Animal>
        {
            new Dog(),
            new Cat(),
            new Dog(),
            new Cat(),
            new Dog()
        };

        var dogs = animals.OfType<Dog>(); // 过滤出Dog类型的元素
        var cats = animals.OfType<Cat>(); // 过滤出Cat类型的元素

        Console.WriteLine("Dogs:");
        foreach (var dog in dogs)
        {
            Console.WriteLine(dog.GetType().Name);
        }

        Console.WriteLine("Cats:");
        foreach (var cat in cats)
        {
            Console.WriteLine(cat.GetType().Name);
        }
    }
}

Dogs:
Dog
Dog
Dog
Cats:
Cat
Cat