一个伪ajax图片上传代码的例子

复制代码代码如下:

<?php 
if($_FILES){ 
?> 
< script> 
window.parent.ajaxUploadPicture.uploadCallback(‘http://img0.bdstatic.com/img/image/5099213b07eca8065380ce7f75e95dda144ad348269.jpg‘); 
< /script> 
< ?php 
die; 
} 
?> 
< !DOCTYPE html> 
< html> 
< head> 
< script> 
// www.jbxue.com
ajaxUploadPicture = { $o1:‘‘ }; 
ajaxUploadPicture.ajaxUploadFile = function ($o){ 
this.$o1 = $o; 
var $iframe = document.createElement(‘iframe‘); 
$iframe.style.display = ‘none‘; 
$iframe.name = ‘iframe‘; 
$iframe.id = ‘iframe‘; 
document.body.appendChild($iframe); 
var $form = document.createElement("form"); 
$form.method = "post"; 
$form.enctype = "multipart/form-data"; 
$form.action = ""; 
$form.target = ‘iframe‘; 
$newO = $o.cloneNode(); 
$form.appendChild($newO); 
$form.submit(); 
} 
ajaxUploadPicture.uploadCallback = function ($url){ 
$pic = document.createElement(‘img‘); 
$pic.width = "200"; 
$pic.height = "150"; 
$pic.src = $url; 
if(document.getElementById(‘picshow‘) == null){ 
$div = document.createElement("div"); 
$div.id = ‘picshow‘; 
this.$o1.parentNode.insertBefore($div,this.$o1.nextSibling); 
}else{ 
$div = document.getElementById(‘picshow‘); 
} 
$div.innerHTML = ‘‘; 
$div.appendChild($pic); 
}; 
< /script> 
< /head> 
< body> 
< input type="file" name="file" onchange = "ajaxUploadPicture.ajaxUploadFile(this);"> 
< /body> 
< /html>