Typecho默认主题导航栏菜单显示所有分类

       <a<?php if($this->is('index')): ?> class="current"<?php endif; ?> href="<?php $this->options->siteUrl(); ?>"><?php _e('首页'); ?></a>
                        <?php $this->widget('Widget_Metas_Category_List')->to($category); ?>
                        <?php while($category->next()): ?>
                        <a<?php if($this->is('category', $category->slug)): ?> class="current"<?php endif; ?> href="<?php $category->permalink(); ?>" title="<?php $category->name(); ?>"><?php $category->name(); ?></a>
                        <?php endwhile; ?>