{eyou:notempty name='$eyou.global.web_name' /}
{eyou:global name='web_name' /}
{/eyou:notempty}
https://www.eyoucms.com/doc/label/all/505.html
判断某个字段是否为空
{eyou:notempty name='$eyou.内容' /}
{$eyou.内容}
{/eyou:notempty}
{eyou:global name='web_name' /} 网站简称