//分割经纬度
var js_str = '117.13131701435834,36.68554985754384';
var js_arr = js_str .split(",");
var dbx = js_arr [0];//117.13131701435834
var dby = js_arr [1];//36.68554985754384
//分割经纬度
var js_str = '117.13131701435834,36.68554985754384';
var js_arr = js_str .split(",");
var dbx = js_arr [0];//117.13131701435834
var dby = js_arr [1];//36.68554985754384