如何分离一个顺序表里的0元素和非0元素？本程序展示了三种高效算法并比较他们之间的性能-How to separate 0 and non-0 element in a squencial list? The program shows three effective algorithm and compare their performances.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001282s ]
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:0.091538s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001191s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002098s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001235s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003654s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001062s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003255s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014858s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001402s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 176300 [ RunTime:0.001344s ]
