理想情况下，插件应该挂接到何处调用register_sidebar();?

将init 做得好吗？

function my_plugin_register_sidebars() {
    $args = array(
        \'name\' => \'foo\'
        \'description\' => \'bar\'
        ...
    );
    register_sidebar( $args );
}
add_action( \'**????**\', \'my_plugin_register_sidebar\' );