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:0.001315s ]
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:0.115927s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001199s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001946s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001191s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003712s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000997s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003326s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015405s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001447s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 50191 [ RunTime:0.001457s ]
