复制代码 代码如下:

<img id="img1" src=""/>

<script>

function fileChange(obj) {

var url = obj.value url = "file:///" + url.replace("",'/');

alert(url);

document.getElementById("img1").src= url;

}

</script>

<input type="file" onchange="fileChange(this);" />

关键是：url = "file:///" + url.replace("",'/')