一个很好的设备管理器扫描工具，对硬件童鞋有帮助.运用系统的devicechange消息。利用vs2005工具开发的USB外设拔插检测，并列举相应设备信息。-VS2005 tools developed by the use of USB peripherals plug testing, and lists the corresponding device information.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001520s ]
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:0.092183s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001257s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001901s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001266s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003614s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001064s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003359s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014787s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001358s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 260655 [ RunTime:0.001515s ]
