roosalsa wrote:我懂了補數的問題但都...(恕刪) 補數是兩個數字加起來等於某個數字...你說的是61是39的100的補數...11是39的50的補數...通常是用來作相減用的...2's complemet...1's complement好像沒聽說過負的~~^^""(印象中啦...過很久了...)