编译原理中的First集与 Follow集生成程序，这是我用C＋＋语言写的，希望对大家有点用处。-Compiler Principle of First Set and Follow procedures set generation, which is my C++ languages, we hope to somewhat useful.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001506s ]
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:0.100092s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001366s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002075s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001436s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003873s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001280s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003245s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015982s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001674s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 91530 [ RunTime:0.001651s ]
