using System; using Lesson06.Animals; using Lesson06.Devices; namespace Lesson06 { class Program { static void Main(string[] args) { Console.WriteLine("=== 继承演示 ===\n"); // 继承:Dog 继承了 Animal Dog dog = new Dog("旺财", "金毛"); dog.Eat(); dog.Speak(); dog.Info(); Console.WriteLine("\n=== 方法重写 ===\n"); // 多态:Cat 和 Dog 重写了 Speak Animal cat = new Cat("小猫"); Animal dog2 = new Dog("二狗", "哈士奇"); cat.Speak(); dog2.Speak(); Console.WriteLine("\n=== 接口演示 ===\n"); // 使用接口 Microphone mic = new Microphone("USB麦克风"); Camera cam = new Camera("RTSP摄像头"); mic.Connect(); mic.Disconnect(); Console.WriteLine(); cam.Connect(); cam.Disconnect(); Console.WriteLine("\n=== 接口多态 ===\n"); // 接口类型可以指向任何实现它的类 IDevice device1 = new Microphone("设备A"); IDevice device2 = new Camera("设备B"); device1.Connect(); device2.Connect(); Console.WriteLine("\n=== 完成 ==="); Console.ReadLine(); } } }