我有一個解決方案 這裏的鏈接: http://maraustria.wordpress.com/2014/04/25/multiple-select-and-preview-of-image-of-file-upload/
<!DOCTYPE html>
<html>
<head>
<title>File API – FileReader as Data URL</title>
</head>
<body>
<header>
<h1>File API – FileReader</h1>
</header>
<article>
<label for=」files」>Select multiple files: </label>
<input id=」files」 type=」file」 multiple/>
<button type=」button」 id=」clear」>Clear</button>
<output id=」result」 />
</article>
</body>
</html>
的Javascript
window.onload = function(){
//Check File API support
if(window.File && window.FileList && window.FileReader)
{
$(‘#files’).live(「change」, function(event) {
var files = event.target.files; //FileList object
var output = document.getElementById(「result」);
for(var i = 0; i< files.length; i++)
{
var file = files[i];
//Only pics
// if(!file.type.match(‘image’))
if(file.type.match(‘image.*’)){
if(this.files[0].size < 2097152){
// continue;
var picReader = new FileReader();
picReader.addEventListener(「load」,function(event){
var picFile = event.target;
var div = document.createElement(「div」);
div.innerHTML = 「<img class=’thumbnail’ src='」 + picFile.result + 「‘」 +
「title=’preview image’/>」;
output.insertBefore(div,null);
});
//Read the image
$(‘#clear, #result’).show();
picReader.readAsDataURL(file);
}else{
alert(「Image Size is too big. Minimum size is 2MB.」);
$(this).val(「」);
}
}else{
alert(「You can only upload image file.」);
$(this).val(「」);
}
}
});
}
else
{
console.log(「Your browser does not support File API」);
}
}
$(‘#files’).live(「click」, function() {
$(‘.thumbnail’).parent().remove();
$(‘result’).hide();
$(this).val(「」);
});
$(‘#clear’).live(「click」, function() {
$(‘.thumbnail’).parent().remove();
$(‘#result’).hide();
$(‘#files’).val(「」);
$(this).hide();
});
CSS
body{
font-family: ‘Segoe UI';
font-size: 12pt;
}
header h1{
font-size:12pt;
color: #fff;
background-color: #1BA1E2;
padding: 20px;
}
article
{
width: 80%;
margin:auto;
margin-top:10px;
}
.thumbnail{
height: 100px;
margin: 10px;
float: left;
}
#clear{
display:none;
}
#result {
border: 4px dotted #cccccc;
display: none;
float: right;
margin:0 auto;
width: 511px;
}
http://jsfiddle.net/2xES5/28/