RewriteRule not working

[dylanwang]

I've been working with the likes of CSS, HTML, PHP, Javascript, etc. and I've just started using my .htaccess .

My page's URL looks like this:
example.com/directory/?id=1
I want it to look like this:
example.com/directory/1

I tried this:

RewriteEngine On
RewriteRule ^directory/\?id=(.*)$ directory/$1

Since I'm new to this, I wouldn't know if there's even anything wrong with this code or the syntax.
Can someone help me please?

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Edit: Scratch that I just learned how to do it properly. No need for help now :P