這是-128的補(bǔ)碼表示捐腿。0沒有正負(fù)之分俘种；如果不引進(jìn)補(bǔ)碼的概念悉尾，計(jì)算機(jī)計(jì)算的結(jié)果還真會出現(xiàn)+0葫督、-0的問題棘脐，引進(jìn)了補(bǔ)碼的概念就沒有這個問題了人芽。上面...

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