设机器数采用补码形式（含1位符号位），若寄存器内容为9BH，则对应的十进制数

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29993' and id < 2430664 and id<>'2430664' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29993' and id > 2430664 and id<>'2430664' order by id asc limit 5