演示如何利用f90接口读出已经创建了4维数组的nc文件，并检查文件的正确与否-Demonstrates how to use the f90 interface to read out has created a four-dimensional array of nc file, and check the correctness of documents
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001015s ]
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:0.092009s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001113s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001305s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001082s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003133s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000931s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003782s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016606s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001231s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 287416 [ RunTime:0.015583s ]
