vc编程中全局变量的应用非常重要，但又容易出错，这是对其的较好讲解，极力推荐下载。-vc Programming of the application of global variables is very important, but easy to make mistakes, which is the better explain its utmost to download.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001240s ]
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:0.085361s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001137s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002038s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001157s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003565s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000994s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003160s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014142s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001221s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 316193 [ RunTime:0.001148s ]
