   <ul class="nav nav-third-level collapse">
                                        <li>
                                            <a target="_blank" href="/admin/sql/users/">用户管理</a>
                                        </li>
                                        <li>
                                            <a target="_blank" href="/admin/auth/group/">权限组管理</a>
                                        </li>
                                        <li>
                          