此文件是引文原版的matlab programming
它包括以下内容
Creating and Concatenating Matrices
Accessing Elements of a Matrix
Getting Information About a Matrix
。。。。。
总之包括所有matlab的使用方法
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001259s ]
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:0.078753s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001493s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002089s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001536s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005652s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001240s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007043s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015412s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001728s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 354016 [ RunTime:0.012789s ]
