cmd 的延时关闭

@ECHO OFF
SETLOCAL EnableExtensions
CALL :ProcDelay 600
ECHO %TIME%
GOTO :EOF

:ProcDelay delayMSec_
SETLOCAL EnableExtensions
FOR /f "tokens=1-4 delims=:. " %%h IN ("%TIME%") DO SET start_=%%h%%i%%j%%k
     :_procwaitloop
     FOR /f "tokens=1-4 delims=:. " %%h IN ("%TIME%") DO SET now_=%%h%%i%%j%%k
     SET /a diff_=%now_%-%start_%
IF %diff_% LSS %1 GOTO _procwaitloop
ENDLOCAL & GOTO :EOF
:EOF