十六进制数字是负数吗？ [英] Are hexadecimal numbers ever negative?

问题描述

十六进制数字是负数吗？如果是，那么怎么做？

对于二进制文件，您将有 signed 和 unsigned 。
如何用Hex表示它们？我需要这个来完成我即将开始的十六进制程序。

Are hexadecimal numbers ever negative? If yes then how?
For binary you would have signed and unsigned.
How would one represent them in Hex? I need this for a hex routine I am about to embark upon.

推荐答案

是的。例如，您可以使用带符号的32位二进制和十六进制表示形式：

Yes. For example you'd have the following representations in signed 32-bit binary and hex:

Decimal: 1
 Binary: 00000000 00000000 00000000 00000001
    Hex: 00 00 00 01

Decimal: -1
 Binary: 11111111 11111111 11111111 11111111
    Hex: FF FF FF FF

Decimal: -2
 Binary: 11111111 11111111 11111111 11111110
    Hex: FF FF FF FE

正如您所看到的，负数的十六进制表示与二进制表示直接相关。

As you can see, the Hex representation of negative numbers is directly related to the binary representation.

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