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有没有办法在批处理文件中使用选择命令 - 并等待不到一秒钟

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有没有办法在批处理文件中使用选择命令 - 并等待不到一秒钟

我想[y/n]通过批处理来做一个非常简单的问题。

我可以让它等待不到一秒钟就自动选择默认选项吗？比如

choice /d Y /t .5

答案1

从Choice.exe /?：

 /T    timeout       The number of seconds to pause before a default
                     choice is made. Acceptable values are from 0 to
                     9999. If 0 is specified, there will be no pause
                     and the default choice is selected.

由于他们说的是完整的“秒”，所以您必须选择一个从 0 到 9999 的整数；您不能使用秒的分数（在这些情况下他们通常会要求使用毫秒）。

但是你能使用 0 来请求不延迟，这应该会使其尽可能快。

choice /T 0 /D Y

注意：这是在 Windows 7 上检查的，您的 Choice.exe 版本可能会有所不同。;)

choice.exe 的完整帮助

C:\choice /?

CHOICE [/C choices] [/N] [/CS] [/T timeout /D choice] [/M text]

Description:
    This tool allows users to select one item from a list
    of choices and returns the index of the selected choice.

Parameter List:
   /C    choices       Specifies the list of choices to be created.
                       Default list is "YN".

   /N                  Hides the list of choices in the prompt.
                       The message before the prompt is displayed
                       and the choices are still enabled.

   /CS                 Enables case-sensitive choices to be selecte
                       By default, the utility is case-insensitive.

   /T    timeout       The number of seconds to pause before a defa
                       choice is made. Acceptable values are from 0
                       9999. If 0 is specified, there will be no pa
                       and the default choice is selected.

   /D    choice        Specifies the default choice after nnnn seco
                       Character must be in the set of choices spec
                       by /C option and must also specify nnnn with

   /M    text          Specifies the message to be displayed before
                       the prompt. If not specified, the utility
                       displays only a prompt.

   /?                  Displays this help message.

   NOTE:
   The ERRORLEVEL environment variable is set to the index of the
   key that was selected from the set of choices. The first choice
   listed returns a value of 1, the second a value of 2, and so on.
   If the user presses a key that is not a valid choice, the tool
   sounds a warning beep. If tool detects an error condition,
   it returns an ERRORLEVEL value of 255. If the user presses
   CTRL+BREAK or CTRL+C, the tool returns an ERRORLEVEL value
   of 0. When you use ERRORLEVEL parameters in a batch program, lis
   them in decreasing order.

Examples:
   CHOICE /?
   CHOICE /C YNC /M "Press Y for Yes, N for No or C for Cancel."
   CHOICE /T 10 /C ync /CS /D y
   CHOICE /C ab /M "Select a for option 1 and b for option 2."
   CHOICE /C ab /N /M "Select a for option 1 and b for option 2."

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