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++;
            dog1.ShowAge();
        }
    }
    public class Dog
    {
        private string Name;
        private int age = 0;
        public Dog(string dname)
        {
            Name = dname;
        }
        public void ShowName()
        {
            Console.WriteLine("这是一条狗:{0}", Name);
        }
        public void ShowAge()
        {
            Console.WriteLine("宠物的年龄为" + age);
        }
        // 使用重载运算符
        public static Dog operator ++(Dog dog)
        {
            dog.age++;  // 年龄自增
            return dog;
        }
    }
}