此函数通过两点的大地经纬度（Ja,Wa）和（Jb,Wb）计算两点间距离 Dis -this function through the 2:00 and Geodesy (Ja, Wa) and ( `, mg) calculated the distance between two points Dis
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000999s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.083265s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000974s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001137s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002003s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003124s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000887s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003812s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014861s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.000920s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 256605 [ RunTime:0.018532s ]
