<img src="images/m1.png" id="img1">
<form action="" method="post">
<input type="file" name="file1" id="file1" accept="image/*" capture="camera" onchange=showit();">
<button type="submit">上传</button>
</form>
<script type="text/javascript">
function showit(){
var fr=new FileReader();
fr.readAsDataURL(document.getElementById("file1").files[0]);
fr.onload=function(){
document.getElementById("img1").src=this.result;
}
}
</script>
