1．词法分析 设计、编制并调试该C语言子集的词法分析程序，要求结果以二元组形式保存在文件中。-1. Lexical analysis design, develop and debug the C language subset of the lexical analysis procedure that requires results to binary form group to preserve the documents.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.007852s ]
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:0.136470s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001036s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001012s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003362s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000883s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004183s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.021792s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.016813s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 305295 [ RunTime:0.047904s ]
