操作系统课程设计（1）_读者写者问题；
附设计说明及主要函数流程图。-courses on operating system design (1) _ readers who write; Report design descriptions and the main function flowchart.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002594s ]
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:0.094298s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001851s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002176s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003609s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001936s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003572s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014528s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002433s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 139859 [ RunTime:0.001138s ]
