using System;
using System.Collections.Generic;
using System.Text;

namespace App1
{
    struct Point
    {
        public Int32 x, y;
        public void Change(Int32 x, Int32 y)
        {
            this.x = x;
            this.y = y;
        }
        //public override string ToString()
        //{
        //    //return base.ToString();
        //    return string.Format("{0},{1}", x, y);
        //    //return string.Format("{0},{1},{2}", x, y, x);
        //}
    }
    class Program
    {
        static void Main(string[] args)
        {
            Point p = new Point();
            p.x = p.y = 1;
            Console.WriteLine(p);
            //调用p的ToString()方法,若不override---ToString()则输出"App1.Point"
            ///////////////////////////
            Console.Read();
        }
    }
}