实现转换半角字符和全角字符之间的转换函数，可用于多平台-achieve change characters and the whole half-angle angle between characters conversion functions can be used in multi-platform
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001422s ]
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:0.096567s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000942s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002339s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004960s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001054s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014989s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001150s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 202057 [ RunTime:0.015317s ]
