我对编码不是很在行，但我在谷歌上搜索了很多，编辑了一些脚本，效果很好，但我无法实现我所需要的。

代码如下：

class description_walker extends Walker_Nav_Menu
{
      function start_el(&$output, $item, $depth = 0, $args = Array(), $id = 0)
      {
           global $wp_query;
           $indent = ( $depth ) ? str_repeat( "\\t", $depth ) : \'\';

           $class_names = $value = \'\';

           $classes = empty( $item->classes ) ? array() : (array) $item->classes;

           $class_names = join( \' \', apply_filters( \'nav_menu_css_class\', array_filter( $classes ), $item ) );
           $class_names = \' class="\'. esc_attr( $class_names ) . \'"\';

           $output .= $indent . \'<li id="menu-item-\'. $item->ID . \'"\' . $value . $class_names .\'>\';

           $attributes  = ! empty( $item->attr_title ) ? \' title="\'  . esc_attr( $item->attr_title ) .\'"\' : \'\';
           $attributes .= ! empty( $item->target )     ? \' target="\' . esc_attr( $item->target     ) .\'"\' : \'\';
           $attributes .= ! empty( $item->xfn )        ? \' rel="\'    . esc_attr( $item->xfn        ) .\'"\' : \'\';
           $attributes .= ! empty( $item->url )        ? \' href="\'   . esc_attr( $item->url        ) .\'"\' : \'\';

           $prepend = \'<strong>\';
           $append = \'</strong>\';
           $description  = ! empty( $item->description ) ? \'<span>\'.esc_attr( $item->description ).\'</span>\' : \'\';

           if($depth != 0)
           {
                     $description = $append = $prepend = "";
           }

            $item_output = $args->before;
            $item_output .= \'<a\'. $attributes .\'>\';
            $item_output .= $args->link_before .$prepend.apply_filters( \'the_title\', $item->title, $item->ID ).$append;
            $item_output .= $description.$args->link_after;
            $item_output .= \'</a>\';
            $item_output .= $args->after;

            $output .= apply_filters( \'walker_nav_menu_start_el\', $item_output, $item, $depth, $args, $id );
            }
}

在我的。php文件：

    <?php 
    wp_nav_menu( array(
     \'container_class\' => \'top-nav\',
     \'menu_class\' => \'nav\',
     \'echo\' => true,
     \'before\' => \'\',
     \'after\' => \'\',
     \'link_before\' => \'\',
     \'link_after\' => \'\',
     \'depth\' => 0,
     \'theme_location\' => \'topnav\',
     \'walker\' => new description_walker())
     );
    ?>

问题是我不知道如何为容器添加数据（div) 以及ul 标签

例如，我得到的是：

<div class="top-nav">
<ul class="nav" ...>
<li ...></li>
</ul>
</div>

我想要这样的东西：

<div class="top-nav" mine="something">
<ul class="nav" ... mine2="something2">
<li ...></li>
</ul>
</div>

请帮帮我

$items_wrap = \'<div class="top-nav" mine="something">\';
$items_wrap .= \'<ul id="%1$s" mine="something2" class="nav %2$s">%3$s</ul>\';
$items_wrap .= \'</div>\';

wp_nav_menu( array(
    \'container\'         => false,
    \'echo\'              => true,
    \'before\'            => \'\',
    \'after\'             => \'\',
    \'link_before\'       => \'\',
    \'link_after\'        => \'\',
    \'depth\'             => 0,
    \'theme_location\'    => \'topnav\',
    \'items_wrap\'        => $items_wrap,     // The Default is: \'<ul id="%1$s" class="%2$s">%3$s</ul>\'
    \'walker\'            => new description_walker()
) );