Pocket PC系统开发程序，
1、可实现重启系统
2、获取系统内部的基本信息
3、使喇叭发出固定频率的声音-Pocket PC system development process, one can realize reboot the system 2, to obtain basic information system 3, so that the issue of fixed-frequency speaker
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002451s ]
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:0.089607s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001919s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002443s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002198s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004055s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002134s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003312s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015203s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002442s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 174094 [ RunTime:0.001336s ]
