比 Windows 自带的高级一点的计算器，能将整个表达式输入，然后求值。这个程序要求读者具备编译原理的一些知识-than Windows, bringing their senior point calculators, the entire expression input, and then evaluated. This procedure requires the reader has compiled some of the principles of knowledge
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001210s ]
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:0.093719s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001193s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001904s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001165s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003827s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001103s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003204s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014418s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001300s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 119144 [ RunTime:0.001681s ]
