<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>图片上传预览</title>
<script src="js/jquery-2.1.0.js" type="text/javascript" charset="utf-8"></script>
<style type="text/css">
#pic{
width:100px;
height:100px;
border-radius:50% ;
margin:20px auto;
cursor: pointer;
}
</style>
<script type="text/javascript">
$(function() {
$("#pic").click(function () {
$("#upload").click(); //隐藏了input:file样式后，点击头像就可以本地上传
$("#upload").on("change",function(){
var objUrl = getObjectURL(this.files[0]) ; //获取图片的路径，该路径不是图片在本地的路径
if (objUrl) {
$("#pic").attr("src", objUrl) ; //将图片路径存入src中，显示出图片
}
});
});
});
//建立一個可存取到該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>
</head>
<body>
<img id="pic" src="" >
<input id="upload" name="file" accept="image/*" type="file" style="display: none"/>
</body>
</html>
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