小弟在这里说了几种重要的实现方法，还请各位大虾来指教。几中的但，这几种方法的实现是在VC平台下实现的。
-younger brother said here several important method, please prawns to enlighten. However, several of which several methods in the realization of the VC under the platform.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001116s ]
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:0.094572s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.007525s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001195s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000996s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003179s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000870s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003713s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015706s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001150s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 153041 [ RunTime:0.015168s ]
