'; echo ''; layout_logo_img('logo', $site); echo '' . he($site) . ' · 后台'; $links = [ 'nav' => ['nav.php', '导航内容管理'], 'tools' => ['tools.php', '功能区管理'], 'content' => ['content.php', '内容与顺序'], ]; foreach ($links as $k => $lk) { $cls = ($active === $k) ? 'active' : ''; echo '' . he($lk[1]) . ''; } echo ''; echo '管理员：' . he($admin) . ''; echo '退出登录'; echo ''; echo '