一个适合制作GPS定位系统的显示程序，里面有完整的程序注释，可供参考-A GPS positioning system for the production of the display program, there are complete notes of the proceedings is available for reference
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001337s ]
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:0.089824s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001241s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001900s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001251s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003558s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001136s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003335s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014551s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001390s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 220326 [ RunTime:0.001382s ]
