如何根据帖子作者的用户角色显示内容？

Most of the code I can find are about specific content being showed to the logged in user based on their role.

I want to do the opposite.

This is basically what I want to do:

If author has "Subscriber" role, show some html A. If author has "Customer" role, show html B.

I think this should be possible but I am not sure where to begin.

Here's the snippet I am using but not working so might have error somewhere?

 <?php $current_author_roles = get_the_author_meta('roles');?>
 <?php if ( in_array('Customer', $current_author_roles) ) { ?>
   //do something
 <?php } else { ?>
   //do something else  
 <?php } ?>

Use a conditional. For example:

$current_author_roles = get_the_author_meta('roles');
if ( in_array('Customer', $current_author_roles) ) {
    // do something
}

You can read more about get_the_author_meta() in the Codex.