单片机的数字时钟，有修改时间功能，通过7段数码管显示，通过1，2，3按键进行年月日的切换。-Single-chip digital clock, a modified function, through the 7 Digital display through 1,2,3 keys to the switch date.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001160s ]
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:0.083543s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000897s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001334s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005399s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001003s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001236s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 177279 [ RunTime:0.012854s ]
