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如何填充 SET /P 的输出？

tag-icon • tag-icon windows command-line batch cmd.exe command-line-arguments
如何填充 SET /P 的输出？

我在 cmd 中使用这个简单的菜单，在其中我用TAB键填充了我的 ECHO：

:MENU

ECHO    select this by pressing 0
ECHO(
ECHO    select this by pressing 1
ECHO(
SET /P ANSWER="press something:"

有没有办法填充SET /P ANSWER=??的输出？

我尝试过TAB它和/或SPACE它，但不起作用。它看起来像这样：

     select this by pressing 0

     select this by pressing 1

press something:_

我希望它看起来像这样：

     select this by pressing 0

     select this by pressing 1

     press something:_

答案1

您可以使用一些控制字符，例如退格键（U+0008），如以下代码片段所示；提示：可以使用以下命令从键盘捕获单个按键choice命令（见脚本）

@ECHO OFF
SETLOCAL EnableExtensions

     rem get backspace character to BS variable
for /F %%a in ('echo prompt $H ^| cmd') do set BS=%%a

:MENU
ECHO(
ECHO    select this by pressing 0
ECHO(
ECHO    select that by pressing 1
ECHO(
     rem       ↓ this character is deleted in output by backspace
SET /P "ANSWER=X%BS%   press something: "
ECHO(
echo    "%ANSWER%" entered; another approach using CHOICE command:
ECHO(
CHOICE /C 01 /N /M "X%BS%   Select [0] this or [1] that: "

输出：

==> D:\bat\SU\1324661.bat

   select this by pressing 0

   select that by pressing 1

   press something: s

   "s" entered; another approach using CHOICE command:

   Select [0] this or [1] that: 1

==>

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