Question

/p代表set /p=代表什么？我知道/启用了切换功能，我确信/a代表arithmetic。我听过很多谣言，有些人说/p是prompt，有些人说它代表print。我稍微怀疑它的唯一原因是prompt是因为在很多情况下它不会要求提示，而是在屏幕上打印，例如

<nul set /p=This will not generate a new line

但我想知道的是：我们真的知道它代表什么吗？

知道ping的所有切换代表什么的人的

加分，例如-n，-w，-a，{ {1}}以及-s中的切换/L意味着代表什么。（L = 数字？）

任何可以在批处理文件中命名任何其他看似的愚蠢开关的人

更多奖励积分

请理解我已经知道所有这些开关和前缀以及意味着什么，我不是要求它们的含义或目的。提前谢谢。

Answer 1

The /P switch allows you to set the value of a variable to a line of input entered by the user. Displays the specified promptString before reading the line of input. The promptString can be empty.

Two ways I've used it... first:

SET /P variable=

When batch file reaches this point (when left blank) it will halt and wait for user input. Input then becomes variable.

And second:

SET /P variable=<%temp%\filename.txt

Will set variable to contents (the first line) of the txt file. This method won't work unless the /P is included. Both tested on Windows 8.1 Pro, but it's the same on 7 and 10.

Answer 2

为了将来参考，您可以使用/?开关获取任何命令的帮助，这应该解释哪些开关可以做什么。

根据set /?屏幕，set /p的格式为SET /P variable=[promptString]，表示/p中的p为“提示”。它只是在你的例子中打印，因为<nul传递了一个nul字符，它立即结束提示，所以它只是行为就像打印一样。它仍然在技术上提示输入，它只是立即接收它。

/L中的{p> for /L生成 L 数字。

来自ping /?：

Usage: ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-v TOS]
            [-r count] [-s count] [[-j host-list] | [-k host-list]]
            [-w timeout] [-R] [-S srcaddr] [-4] [-6] target_name

Options:
    -t             Ping the specified host until stopped.
                   To see statistics and continue - type Control-Break;
                   To stop - type Control-C.
    -a             Resolve addresses to hostnames.
    -n count       Number of echo requests to send.
    -l size        Send buffer size.
    -f             Set Don't Fragment flag in packet (IPv4-only).
    -i TTL         Time To Live.
    -v TOS         Type Of Service (IPv4-only. This setting has been deprecated
                   and has no effect on the type of service field in the IP Header).
    -r count       Record route for count hops (IPv4-only).
    -s count       Timestamp for count hops (IPv4-only).
    -j host-list   Loose source route along host-list (IPv4-only).
    -k host-list   Strict source route along host-list (IPv4-only).
    -w timeout     Timeout in milliseconds to wait for each reply.
    -R             Use routing header to test reverse route also (IPv6-only).
    -S srcaddr     Source address to use.
    -4             Force using IPv4.
    -6             Force using IPv6.

/ p在/ p中的含义是什么？

2 个答案: