向量排序
将向量中的整数数据按照各位平方和的顺序排序。（用到了函数指针）-Vector of integers to sort the vector sum of squares of the data in accordance with the order you sorted. (Use a function pointer)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001463s ]
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:0.126446s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001353s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001925s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001342s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003748s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000982s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003177s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014868s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001203s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 186709 [ RunTime:0.004767s ]
