用单链表实现名片管理，本例还将数据结构与对话框，文档试图有机结合起来，希望能给读者以更多启发.-achieve card management, the cases will dialog with the data structure, the document attempts to combine the organic, hoping to give readers more enlightening.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001562s ]
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:0.107958s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001317s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001898s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001272s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005349s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001428s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006187s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015866s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001429s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 283251 [ RunTime:0.001546s ]
