用java实现数据结构中的栈和队列，是一个applet程序，可以通过实际操作来演示数据结构的栈的具体实现方式。-An applet program, use java to achieve stack and queue in data structure. It can be used to demonstrate the implement of the stack.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001981s ]
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:0.087686s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002269s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002071s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002316s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003990s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002078s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004840s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015109s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002434s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 51953 [ RunTime:0.001321s ]
