@echo off


set /p "port=Input Port (Default 56800): "


set "numbers=0123456789"
if "%port%"=="" (
    set "port=56800"
) else (
    set "valid=true"
    for /f "delims=%numbers%" %%i in ("%port%") do set "valid=false"
    if not "%valid%"=="true" set "port=56800"
)


set Z_PORT=%port%


:loop
.\windows\backend\backend.exe
echo Exit, restart...
timeout /t 1 /nobreak >nul
goto loop