完整的时钟类的实现，运行程序可以输出程序自带的设置时间，并可以自己设置时间。-Complete realization of the clock type, operating procedures can bring their own output of the setup time and setup time can be their own.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001276s ]
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:0.089631s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.005858s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003940s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.003819s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003396s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000871s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003742s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016206s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001637s ]
UPDATE `jrk_articles` SET `hits` = 3 WHERE `id` = 137666 [ RunTime:0.018302s ]
