php中 用imagecreatefromjpeg函数创建的函数，用怎么输出到浏览器页面啊
代码如下：<?php
$logon_url = "image/tu.jpg"; //水印logon
$water_url = "image/shrou.jpg";//被打水印图片
if(file_exists($logon_url))
{
$logon_image = getimagesize($logon_url); //取得图片信息
}
else
{
echo "水印Logon不存在";
}
print_r($logon_image);
$logon_im = @imagecreatefromjpeg($logon_url);
header("Content-type:image/jpeg");
imagejpeg($logon_im);
?>
看别人敲代码时很容易，我怎么没有显示出图片那，结果来了个这
好生郁闷啊！
