LL（1）分析 写的语法分析程序，但是不能实现消除左递归，提取公因子-LL (1) analysis of written grammar analysis program, but can not eliminate the left recursion, extracting common factor
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001384s ]
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:0.093667s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001310s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001910s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001399s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003561s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001050s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003164s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014391s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001361s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 133466 [ RunTime:0.001158s ]
