一个高使用率的四位密码门锁，为了防 止他人从按键附着的指纹破解，怎样设置密码相 对更安全？

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31555' and id < 2527952 and id<>'2527952' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31555' and id > 2527952 and id<>'2527952' order by id asc limit 5