背景图只显示一次，不循环 这个用一个CSS就搞定
.{
background-repeat:no-repeat;
}
PHP后台就是一个表单域textarea，输入时候要回车时候就回车
前台<?php $text = $res_now['oem_no'];
$text = str_replace("&","&",$text);
$text = str_replace(" <","<",$text);
$text = str_replace(">",">",$text);
$text = str_replace("/n"," <br / >",$text);
$text = str_replace("/r","",$text);
echo($text);
?>
这样就可以
