非常经典的MATLAB/SIMULINK入门书籍,主要围绕信号与系统来讲,里面带有很多SIMULINK的仿真源程序,看后会收获很大.-Very classic MATLAB/SIMULINK entry books, mainly in terms of signals and systems, which many SIMULINK simulation with source code, will see a great harvest.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001048s ]
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:0.076189s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001041s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001133s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001135s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003249s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000885s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003675s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015102s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001475s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 31550 [ RunTime:0.013430s ]