Javascript是一种由Netscape的LiveScript发展而来的脚本语言，主要目的是为了解决服务器终端语言，比如Perl，遗留的速度问题。当时服务端需要对数据进行验证，由于网络速度相当缓慢,只有28.8kbps，验证步骤浪费的时间太多。于是Netscape的浏览器Navigator加入了Javascript，提供了数据验证的基本功能。
-Javascript is a LiveScript development of Netscape
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001274s ]
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:0.064986s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000950s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001046s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000930s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003012s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000885s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003335s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014157s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001003s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 2249 [ RunTime:0.016804s ]
