(Analysis: The numbers in the computer are intuitively marked with the original code, and the final multiplication and division operation rules are relatively simple, but it is very inconvenient to touch the marking of symbols when doing addition and subtraction operations. The introduction of the complement code is to use the attributes of the complement number to conveniently implement the addition and subtraction of positive and negative arbitrary numbers, and the terminal changes the subtraction operation into an addition operation, so the complement code is most suitable for digital addition and subtraction.)
收藏
