用JAVA编写的矩阵求逆
import java.io.*;
import java.util.StringTokenizer;
public class Test {
private int N;
private double[][] src;
private double[][] result;
public Test() {
}
public static void main(String[]
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001060s ]
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:0.081313s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000998s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001109s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000997s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004682s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001343s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006673s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.023207s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001216s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 50191 [ RunTime:0.021337s ]
