数据结构链表 创建链表，删除元素，插入元素，查找元素，检查给定的插入位置的正确性，节点移动，单链表-Create a linked list data structure linked list, deleting elements, inserting elements, find elements, check to set the location of the correctness of insertion, node movement, a single list
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001121s ]
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:0.069960s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001198s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001210s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000911s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003191s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000759s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003588s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014318s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001045s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 199071 [ RunTime:0.017732s ]
