内存清理程序，具有选择性，参数-s。通过纪录驻留内存的最高点地址。-Memory clean-up procedures, an optional parameter-s. Through the record of the presence of the highest memory address.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000975s ]
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:0.075212s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001055s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001111s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001034s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003194s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000886s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003620s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015565s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001061s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 258782 [ RunTime:0.029155s ]
