c语言中list(链表)的具体实现，加表头，表尾，删除等功能，附具体例子-c language list (list) of the concrete realization, plus the table header, footer, delete and other functions, with a concrete example of
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001420s ]
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:0.094324s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001252s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002100s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001240s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003608s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001100s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003252s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015085s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001443s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 185450 [ RunTime:0.001299s ]
