Change logo on WordPress Login/Register Page

I have 2 methods to show you and solve this problem.

Function.php
use wordpress plugin

Method 1:Function.php code-add some code

add this code in function.php, this logo is dynamic and it was taken by theme logo.

Go to Appearance → Customize and click on the Site Identity section.
Click Select logo to open your site’s Media.
Upload a new image, or select one that’s already in your Media.
Click Set as logo, and you’ll see your logo appear in the preview window.
Click the Save Changes button at the top right to activate the logo on your site.

function admin_loginlogo() {

if ( has_custom_logo() ) :

$image = wp_get_attachment_image_src( get_theme_mod( 'custom_logo' ), 'full' );
?>
<style type="text/css">
#login h1 a {
background-image: url(<?php echo esc_url( $image[0] ) ; ?>) ;
background-color:#0b3259;
}
</style>
<?php
endif;
}