using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Dog dog1 = new Dog("jack");
            dog1.ShowName();
            
 
// 使用隱式轉換
            Cat cat1 = dog1;
            cat1.ShowName();
            // 使用顯式轉換
            Dog dog2 = (Dog)cat1;
            dog2.ShowName();
        }
    }
    public class Dog
    {
        private string Name;
        public Dog(string dname)
        {
            Name = dname;
        }
        
 
public void ShowName()
        {
            Console.WriteLine("這是一條狗:{0}", Name);
        }
        // 隱式轉換，將狗的類轉換為貓的類
        public static implicit operator Cat(Dog dog)
        {
            return new Cat(dog.Name);
        }
    }
    public class Cat
    {
        private string Cname;
        public
 
 Cat(string cname)
        {
            Cname = cname;
        }
        public void ShowName()
        {
            Console.WriteLine("這是一條貓:{0}", Cname);
        }
        // 顯式轉換
        public static explicit operator Dog(Cat cat)
        {
            return new Dog(cat.Cname);
        }
    }
}