用结构体实现复数数据类型定义并实现复数运算，实现输入数据-Use the structure to achieve the definition of complex data types and to achieve complex operations, the realization of the input data
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001573s ]
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:0.094971s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001275s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002288s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001303s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003673s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001066s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003306s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015513s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001401s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 167636 [ RunTime:0.001348s ]
