定时器的应用 定时器可以每经过一定的时间间隔就被触发一次，进而完成一次响应-application of the timer every timer can take a certain time interval has been a trigger, then completed a response
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001271s ]
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:0.097957s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001238s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001891s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001263s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003571s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001038s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003186s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017653s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001383s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 144851 [ RunTime:0.001542s ]
