1.在页面内嵌入一个img标签，发起对abc.php的请求，abc.php用header指定返回类型后显示图片，比如
[php]<?php
function showimg($rawimage){
$im = imagecreatefromstring($rawimage);
if ([......]
[php]<?php
function showimg($rawimage){
$im = imagecreatefromstring($rawimage);
if ([......]