定制缓存的生命周期，可以添加缓存，删除缓存中的对象，可以对任何对象设置它的生命周期，对象可以是任何类型的。在其他开发的时候可以直接掉来用，单独的一个线程。-Has custom-made buffer the life cycle, may increase the buffer, deletes in the buffer the object, may establish its life cycle to any object, the object may be any type. In other development time may fall directly uses, an independent thread.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002334s ]
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:0.097345s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002741s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002022s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.006611s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003780s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002200s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003556s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.020738s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002698s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 131038 [ RunTime:0.001284s ]
