linq按类类型过滤

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

public class Animal
{
    public string Name { get; set; }
    public string Type { get; set; }
}

public class Program
{
    public static void Main()
    {
        List<Animal> animals = new List<Animal>
        {
            new Animal { Name = "Cat", Type = "Mammal" },
            new Animal { Name = "Dog", Type = "Mammal" },
            new Animal { Name = "Snake", Type = "Reptile" },
            new Animal { Name = "Eagle", Type = "Bird" }
        };

        var mammals = animals.Where(a => a.Type == "Mammal");

        foreach (var mammal in mammals)
        {
            Console.WriteLine(mammal.Name);
        }
    }
}