对一个数组进行操作，删除其中的0元素！
输入：数组、相应的列Index。
输出：删除0元素之后的新数组！-Operate on an array, delete the 0 element! Input: an array, the corresponding column Index. Output: 0 elements after the deletion of a new array!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000950s ]
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:0.086670s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001427s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001463s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001524s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003650s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001337s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004523s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017105s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001038s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 11166 [ RunTime:0.023023s ]
