本课件是本人在培训机构做培训时的C语言教学课件，内容精要，重难点突出！-This lesson is in training institutions for training of C language teaching courseware, content, difficulty prominent right!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001109s ]
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:0.073068s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001047s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001188s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001108s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003283s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001186s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004046s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018954s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001233s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 202557 [ RunTime:0.015259s ]
