实现中缀表达式向后缀表达式的转换。要求： 键盘输入一个表达式，并以字符#表示结束； 输出为后缀表达式形式。-realization grade expression to the conversion formula suffix. Requirements : an expression of keyboarding and to the end of said characters#; Output suffix expression form.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.016143s ]
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:0.184249s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.006439s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002057s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000898s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003397s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.003726s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003647s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.020378s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001049s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 144344 [ RunTime:0.014464s ]
