设计模式的VC例子，可以用于学习设计模式。我自己觉得很有用。这个是Command模式-design patterns VC example, can be used to study design patterns. I feel very useful. This is the Command Mode
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001306s ]
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:0.088816s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001164s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001917s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001293s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003613s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000988s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003202s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014713s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001289s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 127061 [ RunTime:0.001387s ]
