请教

@echo off & setlocal enabledelayedexpansion
set app=notepad.exe
tasklist |find "%app%"||start %app%
set hh=1%time:~0,2% & set /a mm=1%time:~3,2% + 10
if %mm% GTR 159 (set /a mm =%mm% - 60 & set /a hh=%hh%+1)
if %hh% GTR 123 set hh=100
set ten=%hh:~1,2%:%mm:~1,2%
set now=%time:~0,5%
:0
cls
echo 如果现在时间%time:~0,5%等于%ten%将结束进程%app%
:1
if %time:~0,5% == %ten% (taskkill /f /im notepad.exe & goto :2)
if %time:~0,5% GTR %now% (set now=%time:~0,5% & goto :0)
ping -n 3 127.0.0.1 >nul
goto :1
:2
ping /n 4 127.0.0.1
start %app%