Matlab应用篇提供了大量的Matlab应用实例。配合前三篇所讲内容，巩固Matlab知识。-Matlab Application chapter provides a large number of application examples Matlab. Compatible with the three have said, the consolidation of Matlab knowledge.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001225s ]
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:0.084949s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001165s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001149s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003680s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000991s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003239s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014507s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001235s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 31402 [ RunTime:0.001513s ]
