<html>
<body>
<script type="text/javascript">
var test=new Boolean();
document.write(test);
document.write("<br />");
var test=new Boolean(0);
document.write(test);
document.write("<br />");
var test=new Boolean(null);
document.write(test);
document.write("<br />");
var test=new Boolean("");
document.write(test);
document.write("<br />");
var test=new Boolean(NaN);
document.write(test);
document.write("<br />");
</script>
</body>
</html>
上述代码的输出结果为( )