dedecms5.7调用会员登录 显示登陆状态

一下代码就是 调用会员登陆状态,退出,显示注册和登陆   {dede:php}         require_once(DEDEMEMBER."/config.php");         $uid = $cfg_ml->M_LoginID;           if(!$uid){             echo '<div><a class="login-button" href="/member/login.php">登录</a>         |<a class="join-button" href="/member/index_do.php?fmdo=user&dopost=regnew">注册</a></div> ';         }else{         echo ' <div><a class="login-button" href="'. $cfg_memberurl.'/index.php">'.$uid.'</a>         |<a class="join-button" href="/member/index_do.php?fmdo=login&dopost=exit">登出</a></div> ';                  }         {/dede:php}