控制台快速理解简单工厂

代码：

 public class Program
    {
        public static void Main(string[] args)
        {
            Console.WriteLine("输入1 或 2 ");
            int name =Convert.ToInt32( Console.ReadLine());
            GongC gongC = Fon.Fong(name);
            if (gongC != null) {
                Console.WriteLine("这是只");
                gongC.gon();
            }
            Console.ReadLine();
        }
    }
    //抽象类
    public abstract class GongC
    {
        //抽象方法
        public abstract void gon();
    }
    public class dog : GongC
    {
        public override void gon()
        {
            Console.WriteLine("狗狗");
        }
    }
    public class Cat : GongC
    {
        public override void gon()
        {
            Console.WriteLine("喵喵");
        }
    }

    //工厂
    public class Fon
    {
        public static GongC  Fong(int name)
        {
            switch (name)
            {
                case 1:
                    return new dog();
                case 2:
                    return new Cat();
                default:
                    return null;
            }
        }
    }

😉