在很多实用的程序里都要求用到一些系统的参数，准确了解系统参数，你的程序将会更COOL！-in many practical procedures and have asked to see some system parameters and accurate understanding of the system parameters, your program will be more COOL!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.007765s ]
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:0.068462s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001068s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001186s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001050s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003214s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001049s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004018s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015811s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001226s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 110267 [ RunTime:0.021952s ]
