mvc实现球体随球体参数变化的例子，代码中使用了观察者模式，体现了mvc的思想，是很好的理解mvc的资料。-mvc parameter changes to achieve the sphere with the sphere example, the code uses the Observer pattern, reflecting the mvc idea is a very good understanding of mvc information.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001237s ]
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:0.125943s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.005536s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001131s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001011s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003146s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000940s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003871s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014731s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001122s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 242568 [ RunTime:0.015475s ]
