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

namespace ConsoleApplication14
{
    class Program
    {
        public static void Main(string[] args)
        {
            Vector vect1, vect2, vect3;
            vect1 = new Vector(3.0, 3.0, 1.0);  //调用运算符函数
            vect2 = new Vector(2.0, -4.0, -4.0);
            vect3 = vect1 + vect2;              //实现运算符重载
            Console.WriteLine(vect1.ToString());
            Console.WriteLine(vect2.ToString());
            Console.WriteLine( vect3.ToString());
        }
      
        class Vector
        {
            private double x, y, z;
            public double X
            {
                get { return x; }
                set { y = value; }
            }
            public double Y
            {
                get { return y; }
                set { y = value; }
            }
            public double Z
            {
                get { return z; }
                set { z = value; }
            }
            public Vector()
            {
                x = 0;
                y = 0;
                z = 0;
            }
            public Vector(Vector rhs)
            {
                x = rhs.x;
                y = rhs.y;
                z = rhs.z;
            }
            public Vector(double x, double y, double z)
            { 
                this .x=x ;
                this .y=y;
                this.z=z;
            }
            public override string ToString()   
            {
                return "X的坐标是："+x+"Y的坐标是："+y+"Y的坐标是："+z ;
            }
            public static Vector operator +(Vector lhs, Vector rhs)     //声明运算符重载
            {
                Vector result = new Vector(lhs);
                result.x += rhs.x;
                result.y += rhs.y;
                result.z += rhs.z;
                return result;
            }
        }
        
    }
}