Using the algorithm visualization software JHAVE, the object-oriented concept of composition will be visualized to be use to teach the concept to beginner computer science students.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001946s ]
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:0.085060s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001003s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001227s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000820s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003160s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000821s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003401s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017784s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001640s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 265881 [ RunTime:0.019523s ]
