这里面有几个算法游戏实例，包括多边形游戏，装载问题， 单源路径等，都是比较经典的算法-this algorithm, there are several examples of games, including polygon game, loading problems, such as single-source path, which is a more classical algorithm
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001284s ]
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:0.075242s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001036s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000777s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001126s ]
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