编译原理中算符优先表的生成，其中包含了每步骤的显示，进栈和出栈的过程都能完整的显示出来，仅供大家学习借鉴-compiler Principle operator of the priority list generation, which contains every step, into stacks and stack up the integrity of the process can show up only to learn from you
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001034s ]
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:0.104795s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001355s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001330s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000943s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003185s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000874s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003668s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018578s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001051s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 112861 [ RunTime:0.013651s ]
