词法分析，对一段程序，提取出所有的变量，数据结构里的东西，自己看看就明白了-Lexical analysis, for some procedures, to extract all the variables, data structure of things, could see for himself understood
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001445s ]
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:0.104831s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001393s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001948s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001371s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003763s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001151s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003254s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017619s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001464s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 157311 [ RunTime:0.001407s ]
