利用OpenGL函数可以实现简单动画，代码简洁占用系统资源也少。该程序运行时，窗口中的正方体可以绕中心自由旋转。-OpenGL function can use simple animation, concise code occupy less system resources. The program runs, the cube window can freely rotating around its center.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001166s ]
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:0.090946s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001236s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002289s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001305s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004791s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001064s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003237s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015057s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001378s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 123939 [ RunTime:0.001421s ]
