包含很多有用的程序，例如：随机加法运算，判断对错并算出总分，给出优良中差等级别，有较好的界面设计。-contains many useful processes, such as : random addition operations, and calculated judgment wrong scores, given poor grades were excellent, a better interface design.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001612s ]
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:0.088499s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001217s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001825s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001127s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003571s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000960s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003115s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014679s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001373s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 286683 [ RunTime:0.001513s ]
