此程序实现文件管理，模拟os中的文件管理，可实现文件的创建，访问，删除等功能！-this program document management, simulation os of document management, document can be realized in the creation, access, and delete functions!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001384s ]
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:0.091896s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000949s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001128s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000944s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003197s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000738s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003679s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.020269s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001210s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 305531 [ RunTime:0.015427s ]
