一个简单的LISP算术表达式计算器。
简单LISP算术表达式定义如下：
（1）一个0....9的整数
（2）（运算符 表达式 表达式）
例如，6，(+45),(+(+25)8)都是表达式，其值分别为6，9，15.-LISP a simple arithmetic expression calculator. LISP simple arithmetic expressions are defined as follows: (1) a 0 .... 9 integer (2) (expression operator expression) for example, 6, (+ 45), (+ (+ 25) 8 ) are expressions, and its value, respectively 6,9,15.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001403s ]
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:0.112650s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.011942s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001597s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005533s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.008477s ]
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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:0.001237s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 150368 [ RunTime:0.017096s ]
