5个关于布尔运算的C程序，以及示例，来自《C语言数值常用程序》，所以程序均经过本人测试可以正常使用！-five Boolean operations on the C procedures, as well as examples from the "C language commonly used numerical procedures," and so I have to undergo testing can be used normally.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001053s ]
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:0.077803s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001488s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002031s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001564s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005268s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001226s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006705s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014688s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001088s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 194273 [ RunTime:0.017419s ]
