我的批处理脚本不起作用，我不知道为什么

Question

I've spent my recent hours researching batch scripting and compiling my own program using lua, and batch. One of my batch files isn't working properly and I have 0 idea why. I have edited the script a bit since then but not anything that would change how it works.

This batch script is making you enter a password when you start it up. When I answer with the correct password it will say ACCESS GRANTED. And when entering it wrong it should say ACCESS DENIED. But what is happening instead is that when I enter the wrong password, it says ACCESS GRANTED. I cannot seem to find why this doesn't work.

@echo off
color A
set password=YOUR PASSWORD HERE

:start
cls
echo Welcome!
echo Please input password:
set /p passwordinput=

if %passwordinput%==%password% (
cls
color 2
echo ACCESS GRANTED!
timeout /t -1
goto access
) else (
cls
color C
echo ACCESS DENIED
echo TRY AGAIN
timeout /t -1
cls
color a
goto start
)

:access
cls
pause

Answer 1

You should always use quotes in if string compares, else you got syntax errors when one string contains spaces.

if "%passwordinput%" == "%password%" (
...