实验目的：用Lingo软件求解整数线性规划问题。
实验内容：
已知某个中型百货商场对售货人员的需求经统计如下表，实现工作的安排-Experimental Objective: Lingo software for solving integer linear programming problem.
Experiment content:
Are known to a medium-sized department store sales personnel, the demand for statistics by the following table to realize the work arrangements
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001996s ]
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:0.090271s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.005233s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003328s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002894s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005901s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002629s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005528s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.023905s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003039s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 200440 [ RunTime:0.001371s ]
