phpcms 附件下载

{if $_username}<a href="{$r[file]}" class="down" target="_blank">点击下载</a>{else}
<a href="javascript:alert('请先登录');" class="down" target="_blank">点击下载</a>
{/if}

判断登陆  $_username

来源：https://www.cnblogs.com/xaun/p/11810483.html