求两位数字的加，减，乘，除，虽然程序简单 但是写的很好，可以参考一下。8086测试通过-seeking two figures, plus or minus, multiplication and addition, although the procedures are simple but very well written and can reference. The test 8086
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001211s ]
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:0.067329s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001165s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001245s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000991s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003200s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000872s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003839s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015682s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001237s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 114520 [ RunTime:0.016667s ]
