单片机上开发的微妙级GPS时钟，用KC编译，对时用中断和串口字符同步完成-Developed single-chip GPS clock subtle level, using KC compiler, used to interrupt and serial character synchronization is complete
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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:0.685716s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.006413s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.016155s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.027842s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.006034s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 175033 [ RunTime:0.039691s ]
