PHPMyWind安全警告：MySql Error！

错误文件：/office.php
错误信息：You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND delstate='' AND checkinfo=true ORDER BY id ASC' at line 1 Error sql: SELECT distinct(loupanid) FROM `pmw_infolist` WHERE 1=1 AND (mianji>=1000quyu AND mianji<=) AND delstate='' AND checkinfo=true ORDER BY id ASC