编程求出二维数组中的最大和最小元素的值及其位置。设二维数组如下：
A={ { 3,13,7,9},{11,8,23,5},{6,34,16,4}}。
-programming calculated two-dimensional array of elements in the largest and smallest values and its location. Two-dimensional arrays located as follows : A = () (3,13,7,9, 11,8,23,5 (), (6,34,16, 4).
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001294s ]
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:0.086846s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001446s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002056s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001583s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005314s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001396s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004131s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016289s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001147s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 224598 [ RunTime:0.054777s ]
