枚举windows设备文件，当需要得到设备的时候可以把当前设备枚举出来-Enumeration windows device file, when the equipment needs to be a time when the current device can be enumerated by
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001485s ]
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:0.092872s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000988s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001132s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000964s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003123s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000863s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003888s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018820s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001927s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 289447 [ RunTime:0.020460s ]
