现在网上，mentor的字使用资料及教程较少，前不久，在网上找到一个，还比较详细，是英文版的！不错！-Now online, mentor of the word to use less information and tutorials, not long ago, to find a line, but also more detailed, is in English! Yes!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001112s ]
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:0.083109s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001069s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001829s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001088s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003489s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000893s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003222s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014100s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001184s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 171428 [ RunTime:0.001343s ]
