数据结构，对离散事件的模拟。本程序模拟了一家冰淇淋店的经营情况，可以用于商业分析-data structure, a pair of discrete event simulation. The simulation of an ice cream shop operators, can be used for business analysis
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001538s ]
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:0.107948s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001353s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001338s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003931s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001223s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018410s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001472s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 302988 [ RunTime:0.001524s ]
