@echo off

:get_key
  set "key="
  for /f "delims=" %%a in ('xcopy /w "%~f0" "%~f0" 2^>nul') do if not defined key set "key=%%a"
  set "key=%key:~-1%"
  echo %key%

pause
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xcopy /w . . 2^>NUL
或者
xcopy /w \ \ 2^>NUL
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@echo off
setlocal EnableDelayedExpansion
if "%~1"==":::" goto :spinnerThread

:menuLoop
<nul set /p menu=Select menu[1 or 2]=
call :GetKey
echo(
echo Pressed '!key!'
if !key!==1 call :menu1
if !key!==2 call :menu2
if !key!==2 call :menu2
goto :menuLoop

:menu1
:menu2
call :spinnerStart
rem do some work
ping localhost -n 3  > nl
call :spinnerStop
echo Finished
exit /b

:spinnerStart
del spinnerStop.tmp > nul 2>&1
start /b "" cmd /c "%~df0" :::
exit /b

:spinnerStop
echo dummy > spinnerStop.tmp
:__spinnerStop
if exist spinnerStop.tmp goto :__spinnerStop
exit /b

:spinnerThread
for /f %%a in ('copy /Z "%~f0" nul') do set "CR=%%a"
set "spinChars=\|/-"

:spinnerLoop
set /a "spinner=(spinner + 1) %% 4"
<nul set /p ".=Waiting...!spinChars:~%spinner%,1!!CR!"
ping localhost -n 2 > nul 2>&1
if not exist spinnerStop.tmp goto :spinnerLoop
del spinnerStop.tmp > nul 2>&1
echo(
exit /b

:GetKey
set "key="
for /F "usebackq delims=" %%L in (`xcopy /L /w "%~f0" "%~f0" 2^>NUL`) do (
  if not defined key set "key=%%L"
)
set "key=%key:~-1%"
exit /b
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xcopy /w . 2^>NUL
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for /f %%a in ('copy /Z "%~dpf0" nul') do set "CR=%%a"
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For /F delims^=^ eol^= %%Z in ("!Char!") Do Set "Intro=0"
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Echo(
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certutil -decode
certutil -decodehex
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for /F "tokens=2 delims=键" %%L in ('xcopy /w . 2^>nul') do set k=%%L
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echo.key is:(%key%)
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key is:)
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