数据结构，关于九九乘法表的一段程序。
简单，易懂，需要的朋友可以下载下来参考一下，如有任何疑惑，请告知。-data structure, the section on Jiujiuchengfabiao procedures. Simple, understandable, and we need friends can be downloaded from the experience, if any doubts, please advise.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001345s ]
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:0.106640s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001685s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003721s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001638s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006414s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001411s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003715s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015171s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001361s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 69759 [ RunTime:0.001453s ]
