使用类映射字典在C#中使用多态性

using System;
using System.Collections.Generic;

public abstract class Animal
{
    public abstract void MakeSound();
}

public class Dog : Animal
{
    public override void MakeSound()
    {
        Console.WriteLine("Dog: Woof!");
    }
}

public class Cat : Animal
{
    public override void MakeSound()
    {
        Console.WriteLine("Cat: Meow!");
    }
}

public class Program
{
    public static void Main()
    {
        Dictionary<string, Animal> animals = new Dictionary<string, Animal>();
        animals.Add("dog", new Dog());
        animals.Add("cat", new Cat());

        string animalType = "dog"; // 可以根据需要修改为其他类型

        if (animals.ContainsKey(animalType))
        {
            Animal animal = animals[animalType];
            animal.MakeSound();
        }
        else
        {
            Console.WriteLine("Unknown animal type: " + animalType);
        }
    }
}