Matlab是一套功能强大的技术计算（technical computing）软件工具，就数据采集方面来说，它集中了信号采集（它内置一些著名厂商的数据采集卡驱动程序），信号分析（计算），可视化（绘图），文件处理（存盘，打印等）各方面功能于一体，而且很容易开发出WINDOWS图形用户界面（Graphical user interface，缩写为GUI）.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001040s ]
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:0.062698s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001046s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001211s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000951s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003044s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000852s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003287s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015309s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001192s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 381703 [ RunTime:0.019199s ]
