输入算术表达式，分别输出表达式的前缀形式和后缀形式,提供用户图形界面-Enter an arithmetic expression, respectively, the form of the output expression prefix and suffix forms, provide the user graphical interface
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002089s ]
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:0.098910s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001077s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001871s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001172s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003556s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001042s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003203s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015557s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001351s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 151379 [ RunTime:0.001228s ]
