概率统计实验源程序！这是一个学习使用概率中心极限定理的工具箱，GUI界面，非常好！-Experimental source of Probability and Statistics! This is a learning to use the central limit theorem the probability of the toolbox, GUI interface, very good!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001480s ]
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:0.088314s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001203s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002090s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001209s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003559s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001029s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003176s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014383s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001240s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 299385 [ RunTime:0.001424s ]
