xuekang

参数顺序可能有问题，注意调用encode经纬度传参顺序

sql优化建议：SELECT * FROM `address` WHERE LEFT(`geohash`,5) IN ('wm6n0','wm6j8','wm6jc','wm3vz','wm3yp','wm6n1','wm6j9','wm3vx','wm6jb')