类似这样：https://codex.wordpress.org/Function_Reference/add_role然后

if ( current_user_can(\'new_role\') && !current_user_can(\'upload_files\') )
add_action(\'admin_init\', \'allow_new_role_uploads\');


function allow_new_role_uploads() {
    $new_role = get_role(\'new_role\');
    $new_role->add_cap(\'upload_files\');
}

如果已创建自定义角色以添加新功能，请将此代码添加到这些功能中。php

function add_theme_caps(){
    global $pagenow;

    // gets the author role
    $role = get_role( \'teacher\' );
    $role2 = get_role( \'school\' );

    if ( \'themes.php\' == $pagenow && isset( $_GET[\'activated\'] ) ){ // Test if theme is activated
        // Theme is activated

        // This only works, because it accesses the class instance.
        // would allow the author to edit others\' posts for current theme only
        $role->add_cap( \'upload_files\' );
        $role2->add_cap( \'upload_files\' );
    }
    else {
        // Theme is deactivated
        // Remove the capability when theme is deactivated
        $role->remove_cap( \'upload_files\' );
        $role2->remove_cap( \'upload_files\' );
    }
}
add_action( \'load-themes.php\', \'add_theme_caps\' );