插入运算符算法，123456789=a，在等式左边的任意两个数字之间插入 + - *使得等式成立，列出满足条件的所有结果-Insert operator algorithm, 123456789 = a, the left side of the equation inserted between any two figures+-* Make the equation set up, listing all of the results meet the conditions
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001681s ]
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:0.101962s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001145s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001933s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001258s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003672s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001133s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003369s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014835s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001486s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 161802 [ RunTime:0.005267s ]
