python - 如何在 Python 中将整数视为字节数组？

Question

我正在尝试解码 Python os.wait() 函数的结果。根据 Python 文档，这将返回:

a tuple containing its pid and exit status indication: a 16-bit number, whose low byte is the signal number that killed the process, and whose high byte is the exit status (if the signal number is zero); the high bit of the low byte is set if a core file was produced.

我如何解码退出状态指示(它是一个整数)以获得高字节和低字节？具体来说，如何实现以下代码片段中使用的解码功能:

(pid,status) = os.wait()
(exitstatus, signum) = decode(status) 

Answer 1

这会做你想做的:

signum = status & 0xff
exitstatus = (status & 0xff00) >> 8