简单实现jQuery上传图片显示预览功能
本文实例为大家分享了jQuery上传图片显示预览的具体代码，供大家参考，具体内容如下
<!DOCTYPE html>
<html>
<head>
<title>HTML5上传图片预览</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script src="http://img9.tongzhuo100.com/js/jquery-1.7.2.min.js"></script>
<style>
.hide
{
display:none;
}
</style>
</head>
<body>
<h3>请选择图片文件：JPG/GIF</h3>
<form name="form0" id="form0" >
<input type="file" name="file0" id="file0" multiple="multiple" />
<br><br><img src="" id="img0" width="120" class="hide">
</form>
<script>
$("#file0").change(function(){
var objUrl = getObjectURL(this.files[0]) ;
console.log("objUrl = "+objUrl) ;
if (objUrl)
{
$("#img0").attr("src", objUrl);
$("#img0").removeClass("hide");
}
}) ;
//建立一可存取到file的url
function getObjectURL(file)
{
var url = null ;
if (window.createObjectURL!=undefined)
{ // basic
url = window.createObjectURL(file) ;
}
else if (window.URL!=undefined)
{
// mozilla(firefox)
url = window.URL.createObjectURL(file) ;
}
else if (window.webkitURL!=undefined) {
// webkit or chrome
url = window.webkitURL.createObjectURL(file) ;
}
return url ;
}
</script>
</body>
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