这个应该是经典编程里面的经典算法实现的八皇后问题．也通过了测试．完全达到设计要求．-This should be a classic of the classic programming algorithm inside the eight Queen s problems. Also passed the test. Fully meet the design requirements.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001375s ]
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:0.088078s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001240s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001196s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001162s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003220s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000975s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003571s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015728s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001147s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 115777 [ RunTime:0.017149s ]
