JS复制文件

<script type="text/javascript">
var fso, f;
function copyFile()
{
fso = new ActiveXObject("Scripting.FileSystemObject");
f = fso.CreateTextFile("c:\\testfile.txt", true);
f.WriteLine("This is a test.");
f.Close();
f = fso.GetFile("c:\\aaa\\111.txt");
f.Copy("c:\\bbb\\111.txt");
}
</script>