内容摘要
<?php$sl=empty($navinfor[morepic])?0:count(explode(chr(13),$navinfor[morepic]));echo $sl;?> 文章正文

<?php

$sl=empty($navinfor[morepic])?0:count(explode(chr(13),$navinfor[morepic]));

echo $sl;

?>

代码注释