采用VC开发的矩阵计算类，里面有许多计算功能可以直接调用或修改使用-development of the VC using matrix calculation category, which has many functions can be calculated directly or modify the use of call
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001245s ]
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:0.098775s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001272s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001894s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001306s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003578s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001054s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003177s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014641s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001439s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 140516 [ RunTime:0.001189s ]
