不需要做任何修改的lex-yacc的demo，可以在parser generator或lex-bison下成功运行-Do not need to make any changes to the lex-yacc the demo, or a parser generator in the lex-bison successfully running
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001289s ]
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:0.065440s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001125s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001132s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000993s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003167s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000884s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003701s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014178s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001081s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 167162 [ RunTime:0.014821s ]
