GPS develop

Development Platform:

C#

Class1.cs：Code Content

							﻿using System;
/// <summary>
/// Class1 的摘要说明
/// </summary>
public class Class1
{
       const double PI=3.1415926;
		public static void Main()
        {
            double[] arr1, arr2;
            arr1 = new double[2] {30.22787378/180*PI, 120.03308206/180*PI};
            arr2 = new double [2]{30.22786535/180*PI,120.03308391/180*PI};
            double j1 = arr1[0];
            double j2 = arr2[0];
            double w1 = arr1[1];
            double w2 = arr2[1];
            //double d=111.12*Math.Cos(1/(Math.Sin(w1)*Math.Sin(w2)+Math.Cos(w1)*Math.Cos(w2)*Math.Cos(j1-j2)));
            double d2 = 6371229 * Math.Acos((Math.Sin(w1) * Math.Sin(w2) + Math.Cos(w1) * Math.Cos(w2) * Math.Cos(j1 - j2)));
            //Console.WriteLine("两点间的距离是：{0}",d);
            Console.WriteLine("两点间的距离是：{0}",d2);
            
        }
}

						