出错信息：SQLSTATE[42000]: Syntax error or access violation: 1064 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 '-20,20' at line 1
出错SQL：select * from ex_product where pro_name like "%我的恒达有人给我改密码了【┋信誉2⒏7⒏01705(扣)〓】%" order by pro_index limit -20,20
出错文件地址：/weipai/xuejingwy.com/inc/mysql_class.php
出错行号：181行
出错代码：42000