使用FileReader实现打开本地图片并预览。
挺方便的，可惜不是所有浏览器都支持，坑爹的IE。
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| <!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript">
function preImg(sourceId, targetId) {
if (typeof FileReader === 'undefined') {
alert('Your browser does not support FileReader...');
return;
}
var reader = new FileReader();
reader.onload = function(e) {
var img = document.getElementById(targetId);
img.src = this.result;
}
reader.readAsDataURL(document.getElementById(sourceId).files[0]);
}
</script>
</head>
<body>
<form action="">
<input type="file" name="imgOne" id="imgOne" onchange="preImg(this.id,'imgPre');" />
<img id="imgPre" src="" style="display: block;" />
</form>
</body>
</html>
|
转载自 http://crayster.iteye.com/blog/1543058