交换法:
交换法的程序最清晰简单,每次用当前的元素一一的同其后的元素比较并交换-Exchange: the exchange of law, the most clear and straightforward procedures, each with 11 elements of the current element of the comparison with the subsequent exchange
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001416s ]
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:0.095154s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001395s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001954s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001373s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003647s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001123s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003241s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014855s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001554s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 152232 [ RunTime:0.001494s ]