U盘测试程序，对U盘不停的经行读写，判断数据是否有误，以此来测试U盘。-U disk test program, the U disk read and write non-stop through the lines to determine whether the data is incorrect, as to test the U disk.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001961s ]
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:0.085441s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002860s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003351s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.003072s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006225s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002770s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005440s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024967s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003173s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 140263 [ RunTime:0.001587s ]
