You can display output as octal, hex, decimal, floating point, ASCII with backslash escapes, or named characters (nl for newline, ht for horizontal TAB, etc.).
您可以将输出显示为八进制、十六进制、十进制、浮点数、包含反斜杠转义符的ASCII，或者指定的字符(nl表示换行、ht表示水平制表符，等等)。
Some manufacturers sell plug-in cards that display, in hex, whatever byte was last written to port 80.
有些制造商会销售一种卡，它可以以 16 进制的形式显示最新写入到 80 端口的内容。
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