设机器数字长为16位（含1位符号位），若用补码表示定点小数，则最大正数

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29993' and id < 2430695 and id<>'2430695' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29993' and id > 2430695 and id<>'2430695' order by id asc limit 5