8数码问题
利用了先广遍历实现了8数码问题，但是回来浪费较多的存储空间-8 issue of the use of a digital wide traverse first eight digital achieved, but returned to waste more storage space
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001023s ]
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:0.072296s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001035s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001115s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000922s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003043s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000862s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003691s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014887s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001072s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 159255 [ RunTime:0.019938s ]
