注: 此博客转自 http://www.cnblogs.com/goody9807/p/6064582.html 转载请注明出处
<body>
上传图片: <input type="file" name="file"
style=" 200px; height: 20px;" onchange="PreviewImage(this)" id="upload" />
<div id="imgPreview" style="120px; height:100px;margin-left: 280px;">
</div>
</body>
</html>
<script type="text/javascript">
function PreviewImage(imgFile) {
var filextension = imgFile.value.substring(imgFile.value.lastIndexOf("."), imgFile.value.length);
filextension = filextension.toLowerCase();
if ((filextension != '.jpg') && (filextension != '.gif') && (filextension != '.jpeg') && (filextension != '.png') && (filextension != '.bmp')) {
alert("对不起，系统仅支持标准格式的照片，请您调整格式后重新上传，谢谢 !");
imgFile.focus();
}
else {
var path;
if (document.all)//IE
{
imgFile.select();
path = document.selection.createRange().text;
document.getElementById("imgPreview").innerHTML = "";
document.getElementById("imgPreview").style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled='true',sizingMethod='scale',src="" + path + "")";//使用滤镜效果
}
else//FF
{
path = window.URL.createObjectURL(imgFile.files[0]);
document.getElementById("imgPreview").innerHTML = "<img id='img1' width='120px' height='100px' src='" + path + "'/>";
// document.getElementById("img1").src = path;
}
}
}
</script>