一个简单的编译器，可以实现简单的画图语句的解析，最终画出简单的图形。涉及程序编译器的实现几个步骤，词法分析，语法分析，语义分析，等等。-a simple compiler can achieve a simple drawing of analytic statement, the final draw simple graphics. The procedures compiler in several steps, lexical analysis, grammar analysis, semantic analysis, and so on.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001096s ]
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:0.077848s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001058s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001014s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003726s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001466s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007398s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015606s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001310s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 117605 [ RunTime:0.019487s ]
