遍历指定目录下文件和子目录，查找指定条件(时间、大小、类型)的文件，并依自己喜好加以处理。-traverse designated directories and subdirectories document that you specified conditions (time, size, type), and according to their own preferences to be addressed.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000960s ]
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:0.147102s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.010164s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001204s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001005s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003151s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000856s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003711s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.019756s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001568s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 285413 [ RunTime:0.010556s ]
