Question

如何使用javascript限制文件上传大小

Answer 1

<script type="text/javascript" defer>
function crobj()
{
var
obj=document.getElementById("path");
var fso=new
ActiveXObject("Scripting.FileSystemObject");
var
opath=fso.GetFile(obj.value);
var s="文件大小为"+opath.size+"bytes";

alert(s);
}
</script>
<input type="file" id="path"
/>
<input type="button" value="提交" />