应用API函数，获得用户的登录名，虽然有一定的局限性，但是对于了解API函数还是相当不错的。-Application API function, the user was logged in, although there are some limitations, but for understanding API function or very good.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002585s ]
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:0.092445s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001904s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001929s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002701s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003797s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001807s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003355s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014796s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002581s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 155544 [ RunTime:0.001210s ]
