看看wp_nav_menu 参数：

<?php

$defaults = array(
    \'theme_location\'  => \'\',
    \'menu\'            => \'\',
    \'container\'       => \'div\',
    \'container_class\' => \'\',
    \'container_id\'    => \'\',
    \'menu_class\'      => \'menu\',
    \'menu_id\'         => \'\',
    \'echo\'            => true,
    \'fallback_cb\'     => \'wp_page_menu\',
    \'before\'          => \'\',
    \'after\'           => \'\',
    \'link_before\'     => \'\',
    \'link_after\'      => \'\',
    \'items_wrap\'      => \'<ul id="%1$s" class="%2$s">%3$s</ul>\',
    \'depth\'           => 0,
    \'walker\'          => \'\'
);

wp_nav_menu( $defaults );

?>