用计算器计算9+10+11+12=?要按11次 键，那么计算1+2+3+4+…+99=? —共要按多少 次键？

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31553' and id < 2527833 and id<>'2527833' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31553' and id > 2527833 and id<>'2527833' order by id asc limit 5