设计了矩阵类,该类实现了矩阵的数学运算,包括矩阵乘除/求逆/求特征向量的!-Design a matrix type, such realization of the matrix arithmetic, including matrix multiplication and division/inversion/demand eigenvector!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001070s ]
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:0.068362s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001532s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002421s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001368s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.015132s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 112387 [ RunTime:0.030830s ]
