我正在研究wordpress开发，我偶然发现了这些代码。我正在努力从谷歌上查找，但似乎找不到它。只是想知道这些代码是什么意思。

/admin在theme\\u css\\u uri中代表什么？

define( \'name_THEME_URI\',                       get_stylesheet_directory_uri());
define( \'name_THEME_TEMPLATE_URI\',              name_THEME_URI . \'/templates\' );
define( \'name_THEME_LANGUAGES_URI\',             name_THEME_URI . \'/languages\' );
define( \'name_THEME_ASSETS_URI\',                name_THEME_URI     . \'/assets\' );
define( \'name_THEME_JS_URI\',                    name_THEME_ASSETS_URI . \'/js\' );
define( \'name_THEME_CSS_URI\',                   name_THEME_ASSETS_URI . \'/css\' );
define( \'name_THEME_IMAGES_URI\',                name_THEME_ASSETS_URI . \'/images\' );
define( \'name_THEME_ADMIN_JS_URI\',              name_THEME_JS_URI . \'/admin\' );
define( \'name_THEME_ADMIN_CSS_URI\',             name_THEME_CSS_URI . \'/admin\' );

2。两美元符号的含义是什么？为什么代码会从get\\u stylesheet\\u directory\\u uri（）更改；到$name\\u template\\u directory\\u uri

 $name_template_directory_uri = get_stylesheet_directory_uri();

 function name_register_js() {

global $name_template_directory_uri;
wp_register_script(\'nectar_priority\', $name_template_directory_uri . \'/js/priority.js\', \'jquery\', \'\',TRUE);

} 
add_action(\'wp_enqueue_scripts\', \'name_register_js\');

希望有人能帮助我。非常感谢。