<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<title>图片上传前的预览</title>
<style type="text/css">
#preview, .img, img {
width: 300px;
height: 300px;
}
#preview {
border: 1px solid #000;
}
</style>
</head>
<body>
<div id="preview"></div>
<input type="file" onchange="preview(this)" />
<script type="text/javascript">
function preview(file)
{
var prevDiv = document.getElementById(\'preview\');
if (file.files && file.files[0])
{
var reader = new FileReader();
reader.onload = function(evt){
prevDiv.innerHTML = \'<img src="\' + evt.target.result + \'" />\';
}
reader.readAsDataURL(file.files[0]);
}else
{
prevDiv.innerHTML = \'<div class="img" style="filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale,src=\\'\' + file.value + \'\\'"></div>\';
}
}
</script>
</body>
</html>
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