该类内部维护了一个矩阵，是由俄罗斯方块抽象出来的 矩阵的每个元素代表方格中的每个单元格，1代表该格有方块，0没有 该类的所有方法都是围绕这个核心矩阵来操作的-internal safeguard such a matrix by Russian abstract squares of the matrix elements of each representative of each grid cells, a representative of the grid with squares 0 No such methods are all around this core to the operation of the matrix
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001010s ]
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:0.102853s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001992s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002657s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001326s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003439s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001104s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.013652s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.033999s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.007503s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 250601 [ RunTime:0.026145s ]
