高精度实时时钟-SD2001驱动程序，在要求较高精度的地方可以作为参考资料。-High-precision real-time clock-SD2001 driver in place require a higher accuracy can be used as reference materials.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001282s ]
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:0.092251s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001243s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001946s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001246s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003653s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001104s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014580s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001260s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 167094 [ RunTime:0.004832s ]
