稀疏矩阵的抽象数据结构的算法的实现，首先声明一个类，在该类的基础上实现数据的存储与矩阵的转置-sparse matrix of the abstract data structure of the algorithm to achieve and be the first to declare a class, In such on the basis of data storage and matrix transpose
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001421s ]
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:0.111567s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001716s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003189s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001817s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005483s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001507s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004762s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024386s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002051s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 149616 [ RunTime:0.001654s ]
