matlab学习教程
都是最基本的内容，对新手很有帮助
虽然是英文的，但我相信大家都能听得懂-matlab tutorials are the most basic learning content, is very helpful for novice English, but I believe that everyone can understand
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000909s ]
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:0.063851s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001068s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001189s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001003s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003072s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000903s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003624s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014883s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001132s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 3046 [ RunTime:0.309086s ]
