摘要：
double distance(double lat1, double lon1, double lat2, double lon2){ double theta=lon1 - lon2; double dist = Math.sin(deg2rad(lat1)) * Math.sin(deg2rad(lat2))+ Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2))* Math.cos(deg2rad(theta)); dist = Math.acos(dist); dist = rad2deg(dist); double miles = di 阅读全文