How to call a controller from form action="".and my controller name is curdcontrollel.php.is we want change rotues also Route::resource('/','curdcontroller');.

php artisan route:list will give you all possible route actions.

ya by using taht i cant get

Have you viewed some free introductory videos or taken tutorial.

Route::resource('/','curdcontroller');

I don't believe you can set up a resource route on the / root of the site. Maybe it works, but I've never seen it.

ya by using taht i cant get

When you do php artisan route:list, what does it output?