编程计算磁盘上（或某一目录下）所有文件的平均长度。 编程计算磁盘上（或某一目录及其各级子目录）每目录的平均文件个数。-programming calculated on the disk (or a directory) all the average length of documents. Programming calculated on the disk (or levels of a directory and its subdirectories), the average per-directory document number.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001509s ]
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:0.097392s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000940s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001340s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001051s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003448s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000964s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004137s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015700s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001247s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 125647 [ RunTime:0.019577s ]
