@echo off

if not "%1"=="" call %*

del "%temp%\#" 2>nul

start /b %~fs0 :aa

echo.&echo      1.打开c盘           2.打开d盘

echo.&set/p var=请输入:

if exist "%temp%\#" (del "%temp%\#"&exit)

>"%temp%\#" type nul&ping -n 2 127.1>nul

goto :%var%

:1

start c:\&exit

:2

start d:\&exit

:aa

for /l %%a in (10 -1 0) do (

   title 倒计时 %%a 秒,无选择将打开 c 盘...

   if exist "%temp%\#" (

      del "%temp%\#"

      title 用户已作选择...

      exit

   )

   ping -n 2 127.1>nul

)

>"%temp%\#" type nul&start c:\&title 回车退出...&exit