<script type="text/javascript" src="https://api.map.baidu.com/api?v=2.0&ak='自己申请'&s=1"></script> <script type="text/javascript" charset="utf-8"> var geolocation = new BMap.Geolocation(); ge
如果两个坐标的列是(x1,y1).(x2,y2),那么他们之间的距离:SQRT((X1-X2)*(X1-X2)+(Y1-Y2)*(Y1-Y2)) sql排序 SELECT * FROM m_store ORDER BY SQRT((121.517759-`longitude`)*(121.517759-`longitude`)+(31.178469-`latitude`)*(31.178469-`latitude`)) PHP计算距离 /***求两个已知经纬度之间的距离,单位为米*@param
一.方式一 st_distance 计算的结果单位是度,需要乘111195(地球半径6371000*PI/180)是将值转化为米. SELECT *, (st_distance(point(lng,lat),point(116.3424590000,40.0497810000))*111195/1000 ) as juli FROM table ORDER BY juli ASC 二.方式二 select *, ROUND(6378.138*2*ASIN(SQRT(POW(SIN(({$lat}
Given an integer array, return the k-th smallest distance among all the pairs. The distance of a pair (A, B) is defined as the absolute difference between A and B. Example 1: Input: nums = [1,3,1] k = 1 Output: 0 Explanation: Here are all the pairs: