数理统计的小软件，可以计算方差，列表列出输入的数字，界面简洁！-mathematical statistics of small software can calculate the variance, the importation of table lists the number of interface simplicity!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001213s ]
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:0.091993s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001479s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001931s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001461s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003663s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001051s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003380s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014782s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001326s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 125237 [ RunTime:0.001465s ]
