--通过经纬度计算两点之间的距离 create FUNCTION [dbo].[fnGetDistanceNew] --LatBegin 开始经度 --LngBegin 开始维度 --29.490295,106.486654,29.615467, 106.581515 (), ),)) Returns real AS BEGIN --转换location字段,防止字段太长.影响SQL美观 declare @LatBegin REAL declare @LngBegin REAL declare
题目为计算两点之间距离. 面向过程的思维方式,两点的横坐标之差,纵坐标之差,平方求和,再开跟,得到两点之间距离. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Classes_2_point_distance { class Program { static void Main(string[
<script type="text/javascript"> getMonthBetween("2015-05-01","2016-05-01") function getMonthBetween(start,end){ var d1 = new Date(start); var d2 = new Date(end); var month1 = d1.getMonth() + 1,month2 = d2.getMonth() + 1
package xxx.driver.business.utils; /** * <p>Represents a point on the surface of a sphere. (The Earth is almost * spherical.)</p> * * <p>To create an instance, call one of the static methods fromDegrees() or * fromRadians().</p> *
mysql函数: SET FOREIGN_KEY_CHECKS=0; DROP FUNCTION IF EXISTS `getDistance`;DELIMITER ;;CREATE DEFINER=`root`@`%` FUNCTION `getDistance`(`lng1` decimal,`lat1` decimal,`lng2` decimal,`lat2` decimal) RETURNS decimal(18,2)BEGIN RETURN round(6378.138*2*asin
js版-胡老师 google.maps.LatLng.prototype.distanceFrom = function(latlng) { var lat = [this.lat(), latlng.lat()] var lng = [this.lng(), latlng.lng()] var R = 6378137; var dLat = (lat[1] - lat[0]) * Math.PI / 180; var dLng = (lng[1] - lng[0